Yeah, criminals are always arrested and convicted. /s
It's a balance. With something as essential as human rights and personal freedom, people (tend to) err on the safe side. Online moderation can err on the other side, since consequences are relatively modest. If you get banned on GH, move to Gitlab or host your own, that's hardly a tragedy.
2) You can be shot without any explanation whatsoever.
3) Your possessions can be taken away, and sold off without any explanation and without recourse.
Links about each of these claims:
https://abovethelaw.com/2018/07/innocent-people-who-plead-gu...
https://en.wikipedia.org/wiki/Shooting_of_Walter_Scott
https://www.forbes.com/sites/jacobsullum/2014/09/11/how-cops... (also applies to, say, cars)