Twitter has these follower-spammers. Idiots who have a twitter account that advertises some junk or other. They follow people to try to get them to follow them. Pathetic.
I logged in to see if there was any kind of spam prevention, only to be given a notice that my email address was incorrect.
Well of course it is, I missed a character. But I already corrected it after I signed up! So I went to correct it again. And again. And again. The change doesn't stick. Twitter is broken.
2009-05-10 update: It seems to have accepted my email address change now.