Open Access is understood well by both the previous contributors to this debate as a form of publishing that does not involve fire-walls and which enables free transfer of arguments between people including the distribution of pieces in a stand-alone fashion. The objection argues that the point of philosophy can, in a general shorthand, be understood to be a concern with "truth" and this is introduced in a way that is not intended to be question-begging between different philosophical positions. The basic point in asserting this is that each philosopher, whatever their other general positions, is assumed to take their own arguments and positions sufficiently seriously as to want to convince others of them and, in this limited sense, to be convinced of their "truth".
Now, after making this point, the argument turns somewhat transcendental as the next move, at least as I understand it, involves a statement concerning the conditions of possibility of assessing the "truth" of the statements of a philosophical utterance and this condition involves being able to "control" the context in which such utterances are made. With traditional print media, so the argument goes, there is a basic way to do this as the argument appears in, for example, a standard academic journal and this journal provides the context for comprehension of the utterance in question. By contrast, with Open Access material there is no such "control" of the context of utterance and hence no way of ensuring respect of the truth-conditions of the utterance in question. Hence there are philosophical grounds for being concerned that such Open Access models should not spread.
Now there is lots to be said in response to this intriguing argument. In general, prior to going into detail, I want to suggest that there is a sense in which the argument is right and another in which it is wrong. Further, the sense in which it is right is different from what might be thought by the one who has stated the argument.
So let's first assess the basis on which the argument might be thought to be "right" and how this basis is different from what might be expected. It is clearly correct to say that the author of an Open Access piece has no way of assessing the way in which their piece will be seen, no "control", as the argument has it, over the "context" of the piece. There are mitigations of this in the sense that, if, for example, an article appears in Kant Studies Online that someone who downloads it is aware of the context of the appearance of the article in an academic journal and the standards expected of such. Further, the pages of the article all include the reference to the place of publication and this shows clearly the general "context" of the publication of the piece. These mitigations may be thought to be insufficient. But now consider the contrast with the traditional place of publication. If your article appears in a print journal or something that has a pay-wall then it is true that access to it is more restricted than in an Open Access situation. But is it true that the author has in this situation "more control" of the context of its means of publication? In fact this is so far from true that the argument advanced fails to distinguish in a meaningful way between traditional publication and Open Access publication.
Let me explain. If you appear in a traditional print journal then what happens is two things that take the "context" quite out of your control as an author. Firstly, assuming this is not a "special" issue devoted to a specific theme or question, the fact is that you have no "control" over the surrounding articles which in fact give the "context" of publication. These surrounding articles could, and often do, display characteristics that are quite different from those in one's own article arguing for positions one might well take to be quite disreputable and doing so in ways that you cannot assume to be standardly acceptable (this happens with even the "best" journals). So in this first important sense the "context" belongs not under the control of the author of the individual piece but rather under that of the editor of the journal. All this applies, mutatis mutandis, with pieces that appear in edited book collections also.
The second way in which the author manifestly lacks "control" of the "context" of the utterance in question is that the utterance can very easily be removed from this "context". It is true that such removal is not quite as easy as with an Open Access journal but it can still pretty easily take place. Articles can be downloaded from print journals that have on-line access and simply studied alone just as happens with Open Access articles. Similarly print journals can be photocopied and the articles circulated in contexts that are quite distinct from that of the original journal and used in ways that are far from under the "control" of the original author. So true is this that the basic conditions of these articles (and it was these conditions that were taken to be part of the assessment of the "truth" value of the utterances in question) cannot be meaningfully distinguished from the conditions of Open Access articles.
So the sense in which it is true to write that Open Access articles are not under the "control" of the author of them is just as applicable to the production of articles in traditional formats. And this was not the point of the original argument which suggests that the original argument has clearly missed something crucial.
What the original argument missed were the conditions of the "control" of "context" that exist with regard to traditional media. Just listing these conditions is enough to give one pause when confronted with suggestions that authors have, in some meaningful sense, "control" of this context. Take a traditional journal. An author submits their material to it freely and it is then passed by the editor, also freely, to referees who further freely give their time to assess the quality of the article. The author has, it has to be added, little by way of guidance generally in terms of how fairly his article will be treated in this process and is frequently requested to make changes of large scope to have any chance of publication, changes which could meaningfully alter his argument. However, the next point is that the result of all this free labour, assuming that it ends with the article's acceptance (something very unlikely in traditional print media) with publication in a journal that is produced under conditions of artificial scarcity that have blocked the publication of many other articles of equal or superior status to those published on grounds that are scarcely intellectually defensible.
Let me expand on these points to draw out what I mean. Artificial scarcity afflicts traditional print media as there can only be so many issues in a year and therefore only so many pieces can appear in a journal. This leads to situations where pieces can take a great deal of time to appear, often, in fact, an accepted article will appear months and even years after it was initially written. By this point the original author will, most likely, have changed their views in quite important ways and the debate to which they may have seen themselves contributing will also have altered in ways not foreseeable when the original piece was produced. So, the "context" of the reception of the article is decidedly not under the control of the author and one of the reasons why it is not is because of the scarcity of published articles in conditions that are not such as to foster academic judgment as the main criteria.
Traditional print journals do not and could not publish everything of quality submitted to them. Further, their publication cycles encourage delay in publication of a sort that is not best conducive to the reception of arguments produced. Both of these points show a lack of "control" of the author with regard to such means of production.
Returning also to the conditions of academic labour here: the journal is run at cost so that whilst all the work of the academics here (editor, readers, author) is donated for nothing, the journal subsequently sells the content that is accepted and artificially produces barriers to its dissemination. These artificial barriers frequently prevent articles reaching those who might well be best placed to respond most usefully and interestingly to the articles published. This is another way in which the traditional means of publication is far from giving "control" of "context" to the author.
By contrast an Open Access journal, by virtue of its openness, ensures that any reader who learns of its existence can read its material and it has no conditions of artificial scarcity affecting its publication assuming it is published digitally (it still does if print only). These conditions in fact give some important "control" to the author. Given that digital Open Access media can also move to publication quickly they also ensure a better environment for the author's argument in the sense that the author is still close to the material and better able, by virtue of this, to defend its contentions. They further open argument up to quicker developments whilst ensuring that only academic judgments of quality (and not questions of the space of the print) decide what gets published. In all these respects it turns out that the publication of Open Access digital journals in fact has serious advantages in terms of "control" of certain kinds of "context" for the author and suggests reasons why the original argument was false.
In conclusion the way in which the argument was true failed to distinguish significantly between traditional means of publication and those of Open Access digital media. The ways in which the argument was false showed, by contrast, insufficient reflection on the conditions of traditional media which are very far from giving authors "control of context" of the reception of their articles.