I'm hopping on that bandwagon. Signatures are atrociously large. There's no reason that they should be that big. For someone who's on a 10" screen, signatures take up half the page. I don't want to disable them, though, because they're interesting; however, they can be interesting and small.
I like the new PG rules and the new rule against epilepsy-inducing signatures i.e. flashing, though.
Just, signature space... is way too big now. For most users, it's 3x bigger than what they actually contribute through posting =_=;;