Would it be worth setting up a photobucket group that we can all upload photos into instead of always uploading onto the site? Don't know how easy it is to clog up the site! There may already be one but I can't see anything relating to it other than the photbucket instructions on how to get the IMG code.
You can create your own album within the group album and put a password on it. Worked pretty well on a few other forums for people uploading general photies eg club night outs, random bike pics, ride out pics etc that don't really need to be in the forum.