How about setting up some signature rules guys? Like size in pixels, number of lines for text, or byte size of images? I know a lot of sites I go to have sig rules, and it seems to cut down on bandwith needed, because they don't have to host as much.
I was going to post this suggestion a while ago, but failed to do so until I noticed hawkeyes massive 230+kb, 20+ line sig.
That would pretty much be kill on site at a lot of other forums I go to. It's not like it's that big a deal to have to follow it. 4 lines of text or a 500x120 pixels sig is more than enough...
Just a thought, more of a just helping out suggestion that would have to be enforced by Mods and Admins.