Okay, so I asked this before but never really got an answer.

My signature says that I'm not allowed to have more than one image in there, but I've seen people who have two or three. They're not gold accounts, so can anyone explain this to me?

Some people might have coded their forumtext so that multiple images were at the bottom of their posts like a signature, but it wasn't actually their signature. Or, if the images were below that thin gray line, they might have had a bunch of images and saved it as one image on Paint or something, and uploaded that.