One of the main journals in my field has recently switched to 100% open access, and charges an article processing charge (APC) of about 2500 ($/€/£). For some researchers this is automatically covered by some agreement between their institute and the publisher, but for many others it is not. Over my career, I have worked with this journal both as reviewer and author (published most papers there), but am now pushed out as author by this change.
IMHO, the APC is not justified, in particular as reviewers get zero appreciation/compensation for their work, which arguably is the only important part of the article processing. The journal has just asked me for a review, but I am poised to turn down any further reviewing for this journal (until the situation has changed).
Is this a reasonable / justified decision or just stupid? What is the situation in your field of research?
Note that reviewers could be appreciated by giving them vouchers that can be used in lieu of (part of) an APC.
Added in edit I also like to point out that by charging APC the journal enters a conflict of interest between profit (accepting bad/borderline papers) and keeping the science clean (rejecting such papers), which in the medium/long term will inevitably result in a further reduction of the average quality of papers published, similar to the decline of standards of university degrees in the UK since the introduction of student fees.