With my 2.8 gigs in about 900 files I regularly share I don't count myself as a freeloader. Most peers I see share less.

Why I cut down slowly to 0 is in ordner to stop new clients from coming in if I'm going to use the bandwith in a while. I can also uncheck the box "share files". This would mean that my files are "no longer shared". By putting the number to 0 and then again up, the clients that have my files on their waiting-list ("busy") have a new chance to get the files without a new search.