Yeah, but some people don't want to be missing out on what others can see. :shrug: Like me. I also dislike signatures. I don't hate them, but they're not wonderful. I don't want to disable them because sometimes people are like "Nice signature!" And I don't want to be missing out on what others can see. They also don't bother me too much.
Well, it's better than the alternative: If you disable signatures universally, people will just manually put their sigs after their posts like so:
---------------
Signature content
Then not only do you have no way of choosing to not view it, but whenever you quoted someone, their sig would be in their quote.