Right now I can only delete every PM on the page list which means I can only delete 15 at a time, but that means I have to sift through all of them before I can clear them all.
The small message limit means that means that my PM box gets filled with too much garbage quickly. I suppose I could tell people to stop sending me useless stuff but I don't want people to know that I just delete their messages without reading because they would get their feelings hurt. (Just kidding; I use the archive function to save them... and still don't read them). Ideally there should be more space but server limitations might make that not feasible.
Thanks.