Why does forums auto change my signature?

[Hiritier]

Today i log in and saw a new signature under my post: "A vote for Sapience is a vote for progress! Vote today!" Seriously? I mean... Sigh... Even if my old signature is the useless old character signature link, I dont want anyone to "fix" it for me. Thank you.

PS: just read the thread on general box. Again, I DONT WANT ANYONE FIX IT FOR ME! You think I like to see my signature is an error code? I'll fix it THE WAY I LIKE when i have time. Is that error code against the guidelines? Is it damage the forums? Is it cause lag? I dont think so. Even if it is, you can just simply set default sign is blank.