Personally, I have a thread around here requesting that the signature's character limit be increased. Yes, overly long sigs are a bother, but somehow I don't think that this forum keeps track of how many lines a sig is. It's done based on the number of characters. I could easily make my sig with 249 new lines, and then one character just to screw up the forums, but I don't do that.
I still want to have the character limit increased so that I can add more hyperlinks to my sig.