Mendeley is not going to stop working all of a sudden. It's still the same tool, developed by the same people, with the same roadmap and vision ahead.

The keys to the castle have been turned over to the enemy. I'm going to have to migrate eventually, so might as well start sooner rather than later. This is an incredibly sad event for me. But, like I said, I should have known better. Closed-source software can be taken away and turned toward evil purposes and there's nothing the users can do about it.

Their vision right now has a remote control with a "reverse" button, held by well known enemies of that vision.

"We are committing to implementing Mendeley’s existing product development roadmap, and giving the company the space to “let Mendeley be Mendeley.”" - http://elsevierconnect.com/elsevier-welcomes-mendeley/

I'd be rich if I had a penny for each time such promises were publicly made when acquiring a company and broken within less than 12 months.

Even right here on HN there have been many posts about such situations some time after acquisitions; and Elsvier reasonably does have practical motivation to interfere here and there.

Such arms-length separations are often published in mergers&acquisitions PR and practically never happen in practice, they all get abused - should we really believe that Elsevier is so exceptionally more etchical than most other companies?

They have that "remote" in their hands. They have promised not to use it. Will they?

And from a company with such a reputation of truthful public statements!