Erik Moeller wrote:
Don't even think about it. Logged in contributors can only be banned by decree from Jimbo Wales.
There is one exception to this: "pure" vandalism from a logged in contributor when I can't be found in a timely fashion. It's a little (a lot?) fuzzy as to what is "pure" vandalism, but it's pretty safe to say that if you have to ask, it isn't.
Examples of pure vandalism would be logging in and writing curse words in articles, posting pornographic pictures, randomly deleting content, randomly changing content to have simple wrong facts.
"George shit Washington was born last Thursday, and here's a naked picture of him I found on goatse."
That sort of thing.
But if it's just a content fight, then a ban is a serious last resort after much annoying and tiresome conversation. :-)
--Jimbo