I think Sci-Hub is ethical. I'm under no illusions that this somehow makes it legal.
Sci-Hub explicitly bills itself as a "pirate website." Twitter's rules explicitly ban both copyright violation and illegal activities. Therefore Sci-Hub is violation of Twitter's rules.
Twitter may well be very selective in their enforcement, but the fact that Sci-Hub is violating Twitter's rules is not in doubt, is it?
And every single person advocating civil disobedience. From legalize pot on.
Which countries' laws? It's kind of illegal in civilized countries to decapitate homosexuals. Will twitter ban this account now: https://twitter.com/ksamofaen?lang=en They're kind of for it.
Anyway as Matt Levine points out everything is securities fraud nowadays so when any of these decisions burn the share price even a bit, they'll get a class action to deal with. Not sure that's the right way to deal with this sort of thing at all but here we are.