Earlier quoted context omitted.
Its' not about treating people like a jerk, just that you learn quickly to never trust a person at face value when they say "I didn't do anything wrong" because that's usually the first and most common phrase a person who does something wrong uses. I was merely pointing out that the "public" persona a user portrays doesn't have to match the truth.
Which can be equally applied to moderation staff, mods that say "We are not biased, and always are fair only banning people that break the rules" are equally as likely to be bad actors as your narrative about regular users
In the end, that's why its such a difficult problem. You take the normal conflict that occurs in communities, add in the potential for malicious actors on both sides and it's no surprise that the normal conflicts can spiral out of control. Especially in the virtual and relatively anonymous setting of online communities.
And from a person on the outside looking in, it can be impossible to actually know what the truth is.