Hm. I used to have a couple of lines of a "funny quote" in my signature, well I still do except for the Spring Time, I've never had any problems fitting my two lines to the six available.
You should get rid of the extra lines.
PS. You could e-mail Skuzzy and ask him to change your forum ID to your in-game ID. I know he has done that 2 - 6 times...
edit: 2 - 6 is a rough estimate, those I've heard about, there are probably a ton more that Skuzzy has edited (resistance is futile).