We should take the opportunity to tell authors to upload author copies into their institutional repositories. That's do far more for open access than complaining about how evil Elsevier is.
How common is this? Aren't people used to reading what they're agreeing to before they sign a contract? Because:
> but I don't think it's a crazy thing for Elsevier to do
I don't think that either. Elsevier _clearly_ defines the terms ("accepted author's manuscript", "final published version", etc.) in their contract and clearly states what you're allowed to do with each one. For example, click on the "Author posting" tab on this link:
http://www.elsevier.com/journal-authors/author-rights-and-re...
I'm not a fan of the big publishers, I'd be very happy if all journals became open access overnight, but the original article is on a witch-hunt on Elsevier and they didn't even fully check the facts first.
I'm a big believer that all publicly funded research should be publicly available. But... If you sign away your research, don't be surprised when people want to keep it under wraps.
"Subject repositories that aim to aggregate and openly distribute AAMs authored by researchers in specific subject areas."
(There's a difference between AAM and pre-print.)
I'm pretty sure that's a decision made by individual journals' editorial boards, not by the publishers.
For example: http://zvrba.net/writings/fusion.pdf
In that light, I don't think Elsevier is the worst among bad guys. For example, you're also permitted to upload the unreviewed version to arxiv before submitting it to journal. Some other journals will outright reject the article because of its "prior publication".