Maybe there should be some sort of form where one can request a site to be whitelisted? What I would like is anidb at least, so my sig would work properly (dynamic image so I can't upload to other place). If my domain pixomania.net could be added too would be awesome because my screenshot program uploads there, but that would probably not happen as that would maybe defeat the purpose???
Edit: Ahhh shoot images in sigs are not allowed at all anymore