I didn't ban Manos this time or have any input on his ban this time. Everything I'm about to say is my opinion only, and doesn't represent moderation more generally. I think he's bright and thoughtful and pretty interesting... but he also has a bit of a temper that didn't serve him well here.
His ban record looks like: spoilers, being rude to others, being rude to others, being rude to others, being rude to others, being rude to others, being rude to others, thread trolling, being rude to others. Not hard to see which way the wind was blowing.
I am 100% sure that his... minority and ecclectic opinions caused him to get into more arguments which then made his temper flare up. If someone asked me to characterize Manos, I'd say his politics were the following: realpolitik FP tempered by personal identity as Jewish American; authoritarian-classical conservative views on role of state hardened by personal distrust of and contempt for slackers, hippies, or protestors; gun buff; social progressive on some issues; Eisenhower Democrat? I hope if he's reading this that he trusts my assessment here is fair and intended to be neutral. I think at each stage of that description you can see how his viewpoints might have caused friction with swaths of the people who discussed with him. There's not much we can do about that. I will say that in virtually every case Manos was banned, someone else was banned for insulting him back, so I'm not blind to the role others played into making him feel like he was backed into a corner. But I can assure you that he's never been banned for the opinion he had, just the way things went south subsequent to that.
Personally I'm sensitive to a loss of intellectual pluralism when a dissenting voice gets banned--I know I've been the last holdout on a few other past bans for people over this sort of thing--but ultimately we can't stop enforcing the prohibition against aggressive behaviour just because someone is a dissenting voice.