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)
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.
People tend to get pretty upset when someone is very clearly complying with the letter while flying in complete opposition to the spirit, and it's not always an easy fix.
Which can be and often is subject to abuse.
Abuse can be exposed and punished, and very often is.
But nowhere near often enough.
The judicial system that backs it is a massive beast. If someone wants that level of assurances, they should be paying thousands of dollars for a github account. You get the level of perfection you pay for.
For example, people who harass others just within the confines of the rules so that they can't be banned from a community solely using the rules.
This is why we need humans to judge the spirit of the rules.