Fair enough that there cannot BE proof. But when all we have is the word of people who got banned that they were totally innocent.. I believe being a little skeptical and trusting that my experience (and the testimony of people I believe) says that you just don't be a jerk and you're OK is probably a little more believable VS the narrative that it's just a matter of time before that eff word you said 7 years ago comes back to haunt you .
Yes we should raise eyebrows if we get excessive accounts of people being unfairly actioned.. but when you pay attention to these small amounts of accounts we currently have they invariably end up showing hints as to why they got actioned in the first place.