[Equinox]

Yeah, I'm quite content with the limits on forum signatures personally. I'm also pretty against using a signature as a place to advertise to begin with.

So counter suggestion for @Oni, I think the ruling on signatures should be expanded to not allow any form of advertisements.
There's a forum for advertisements, and I did not pay for the Gold rank to get rid of ads just to see @fsociety's adverts in their signature (or any other user for that matter).

Spoiler: Current Signature Rules

Signature images may not be larger than 650x200 pixels and avatars may not be more than 125x125 pixels. You may not advertise your own website, channel, or blog here either.

Anyways, I digress. The limits on signatures are quite reasonable as they, and I think at some point or another it just becomes abuse of the signature functionality.