I was on EAB for literally about ten years, I discovered to my surprise after I was banned, and I don't recall ever being temporarily banned for anything I posted.
HOWEVER, I remember that months before my permanent ban, I did start a thread about a Demoscene production that used a derogatory expression for the Amiga as its title, and I used it for the thread title, and I suppose that could be seen as inciting to troll and provoke people, and it certainly sparked debate as to, in my wording at the time, why an Amiga demo would bash the platform like this. The irony is, the Amiga demo in question had Japanese characters in its title and google did the translation for me, which was very open to interpretation, so the bashing wasn't obvious.
In the end, after the discussion was done, the mods closed the thread and gave me a polite warning and NO ban, not even temporary. So I suppose that, in combination with the main infraction, was enough to ban me for life.
I should've mentioned this at the start, but I really didn't think it would be relevant. And the rules for posting on EAB do say not to insult anyone outright.