These have really gotten out of hand if you ask me. They look nice (also the Jet Set Radio stuff like the one I have right now), but I think they're way too big considering there's still an avatar below it. And some moderators have an additional moderator logo, which fucks up the layout entirely. Just look at this screenshot:
I'm browsing the web at a resolution of 1440x900 and it's still this much of a dead space every time someone any moderator posts something.
If you accept suggestions, then I'd say a small status bar like over at Digit Press or even like here up to 3000 (the little pacman stuff) is ideal.