Since we have no idea what any poster was banned for, how can anyone claim/imply this is happening? I can tell you as a former mod here, this is about as far from what actually used to happen as I can imagine. Valued posters were given a fair amount (and often a ridiculously unfair amount) of leeway in terms of bans or ban length. I seriously doubt that has fundamentally changed, but more to the point, I would bet my participation here that no one banned Logic for a minor infraction.
The truth is, that as good a poster as Logic can be, he/she constantly attracts fights, spats, and arguments. I'm sure the number of his/her posts which have been reported is huge. At some point, I'm sure the mods got tired of dealing with it and banned him/her for a legitimate violation, but I'm equally sure he/she was given plenty of leeway and warning.
The crying about it here only further empowers the behavior upon the return of the offending poster.
Stop seeing conspiracies everywhere, everyone. Assume good intent. Understand you don't know the details. And it's really not your business.