PC skins aren't *that* bad... some of them are extremely pretty to me (the older ones aren't as great, and some of the newer ones too [personally I don't like the default one] but one of the admins, Kent Colton Rogers, makes some pretty darn good skins, IMO). And they're pretty strict about making most of them work at 800x600, so don't start with the banners (there's only one that I can think of that's larger than that). I understand if you don't like them though.
...sorry, I couldn't help but jump in about that. I'm kind of protective of PC. =P
On topic... The skins are fine. I don't see why you're complaining. The default looks great to me. The colors look nice, and the banners look fine. It's not like I'm looking at them most of the time anyway. :/
If the admins take the time to make new skins, okay. If they don't, it's no big deal. Just learn to deal with it.
If you wanted new skins that bad, maybe you could consider a contest? But meh, that would involve time :/