I wonder if it is possible to limit the size of user's signatures. I work with the MIT Scratch team, and we use a modified version of PunBB for our community forums. Lately, some members have taken to including gigantic 1/2 page images in their signatures. The images are hosted off site, but I wonder if there is a way to limit their size or perhaps reject images if they are too big.
Has anyone else had similar issues, or come up with a good way to address this problem?