The most controversial on each political compass zone (sorry OP, I think Lib Left is so clean so you are the most controversial.

Authoritarian Left:

Right, where do you wanna start? Kamikaze was impeached, Richard was part communist and really controversial and do I really need to talk about Andrew again? The answer is Beez though.

Now, February Beez wasn't too controversial. He just chose the wrong friends and was inactive. However, Beez back in October just tried changing Presidents to Dictatorships and eventually by Presidential decree, Incumbent President at the time Dr.strangmeme banned him for a revolt. Those bans were overturned but you get my point.

Authoritarian Right:

Like OlympianProduct said, the more popular among the world community are the Libertarians and it's very much the same here.

Okay, I'll just get this out of the way: I support IncognitoGuy in most ways but he has had his controversies. Who else do we have: President Donald Trump controversially was elected but was quickly nuked. Crazyscientistfarmer was controversial in the beginning. But, no matter how controversial the others are, you can't deny the elephant in the room. WhiteNationalist. Need I say more about this guy.

Libertarian Left:

The cleanest part of the political compass imo. There are some controversial users, OlympianProduct the most so I put him here. There are 2 others: Uno and ConfusionTheTree but other than that, cleanest part of the political compass.

Libertarian Right:

Okay, both Libertarians are a lot cleaner than both Authoritarians.

Surly and RMK have both had controversies but you can't overlook Richy Rich, RichardChill24. And like WN, need I say more about this guy

Poor Beez. 90% of what he did (Commie propaganda and otherwise) was a joke, the rest was a reaction to RichardChill and WN provocations. Tbh he could have handled those better, but we’re all only human. They pissed me off too and others here I’m sure.

What about Legion or MAGA for that auth-Left spot? (MAGA was an auth-left posing as an auth-right as far as I could tell.)

I would agree with your assessment that Lib Left is the cleanest section of the IP political compass. I would however like to point out that Uno didn’t really do anything wrong, IG completely overreacted and went full SJW on him. As an American, I get all sorts of comments telling me how stupid or evil Americans are, but I don’t get bent out of shape over it, I just simply recognize that America isn’t perfect, we’ve done a lot of wrong over our time as a nation, but we still try and do better in the future as a nation. I would say the UK is in the same boat; they have committed many atrocities over the past millennium; but they also are trying to do better as a nation.

The thing with lib left is we have the Twitter police but literally every actual politician of ours is somewhat clean.