Either that or she is deliberately lying.
This is what she is linking to:
Now it does say that Amazon has refunded the price of the book of an author who has signed the petition but nowhere is there an official Amazon list of names. Once again an author has deliberately or perhaps mistakenly, but I doubt it, propagated a false claim against Amazon or an Amazon holding (GoodReads) to further an outrageous demand that will only end up hurting the company that is providing them a world-wide (for some) platform for selling their books.
And her fans? They are just swallowing the lie whole. Does nobody actually read, does nobody do any freaking research? Maybe I missed a lone voice of reason in that pile of misplaced outrage, I just didn't have the stomach to wade through it all.
I have no doubt that her sheeple are running off to sign that petition (wonder if they will all use their real names). Good move, Ms Sala, don't just bite the hand, make sure you saw it off and drop it onto that large pile of crap you are spewing.