Sci-hub by its own admission is a service that breaks the law by providing unauthorised access to copyright materials. I don't know whether Sci-hub has violate

Sci-hub by its own admission is a service that breaks the law by providing unauthorised access to copyright materials. I don't know whether Sci-hub has violated Twitter ToS (on the platform) but it doesn't surprise me that Twitter would want to distance itself from an organization that is committed to breaking the law. A more dramatic/extreme example would be whether we would think it is ok for other illegal organisations/services (e.g terrorists) to be on Twitter if they weren't breaking ToS on the platform, I suspect many would say no. On Trump, it wouldn't surprise me if he broke Twitter ToS on the platform but you would have to admit that his ban would involve greyer interpretation of his tweets than a black-white ban of a service that aims to break the law. And I say this as a big support of sci-hub too. Generally speaking delete Facebook/Twitter/etc, I did and it has been a big improvement to my life.