http://www.sciencemag.org/news/2016/04/alexandra-elbakyan-fo...
If you want source there is her comments on Russian website:
https://geektimes.ru/users/sci-hub/comments/ (most importantly latest one)
She's heavily downvoted there since most of IT-related audience in Russsia don't support autocratic regimes. She call that community downvoted her is "fifth column" (which in CIS is term for political opposition used by dictators fans) and censorship of internet resources that support political opposition is good thing.
There was other case when sci-hub community made some poll on their social network page about supporing what they doing and then banned everyone who voted against. Sadly it's harder to find source on this one since everything related to incedent is deleted and everyone posted about that is removed from their group.