I suppose I'm still a relative newbie compared with some of you, but I've had nothing - not even a warning. I know that at least one of my posts has been reported, but obviously nothing has been considered bad enough by the mods for any action to be taken.
I did save myself from a banning once, by PMing a mod with a thread I was about to start. He said it crossed the line, so I never posted it. Not sure that counts, though.
Otherwise, my record is completely clean.