How about being to upload a picture for your forum avatar, using a URL or from your computer. There could be a filter for inappropriate pictures.

http://www.rescreatu.com/forum/cat/general/suggestions/a-few-ideas/

I've already suggested this. ^_^ 

This idea's already been suggested. <3
Be sure to check the forums before making a suggestion, so as to prevent repeating suggestions that are already out there.

 Thanks!