Originally Posted by Noob
It's basically the user title. But admins can put HTML in the user title and so you can include an image rather than text.
I don't remember exactly, but I think the mods decided that if you had a certain amount of rep, 1,000 or 2,000 you could request to have one added. But they have to be relatively small. Ideally smaller than your av. (Unless you're Bullock, lol).
I'm such a bastard, aren't I?