I've often found quite large pictures in signatures, it would be good to declare a image limit such as:-
- Two 200x200 images, one 468x100 Banner.
- Two 468x100 images.
The above limits are used at Serebii's forums.

This prevents quite a lot of stacking and makes the pages load way faster.

Thank you, I've been thinking of making up various Rules on the Forums, including ones for Signatures. I'll keep that in mind.