Actually, overlarge signatures are an annoyance to many posters.
Just looking at this page, four posters (the OP, Icebrat, Jimmiej and Tigger&Belle) have signatures that are larger than allowed by our signature guidelines.
In the case of the OP, the sig is rather long and requires scrolling to get past. You should have no more than 12 lines (text, blank lines, smilies, and count one for images) in a signature, and this one has more than that.
Photos need to be a max of 200 pixels tall, and the photos in the next two sigs are taller than that.
Tigger&Belle has 4 images in her sig, and the max allowed is 3.
Our signature guidelines are posted in a sticky at the top of the Tech Support forum:
http://www.disboards.com/showthread.php?t=332080
While the fun stuff in signatures adds lots of life and personality to the forums, threads with more space dedicated to signatures than actual post content do annoy many posters. Also, signatures that are too large are subject to being deleted by the "signature fairy".
Check out the guidelines, and ask on the Tech Support forum if you don't understand the guidelines or need help in how to see if your sig is out of spec.