That does seem to be the biggest problem, keeping people. So many just join, disconnect, and are never seen again...
I, admittedly, am one of those people *Sweatdrop* But I only drop out of rps that don't interest me once I join, and I think it would be awkward to tell them 'Oh, um, hey, I join thinking it was pretty cool but it turned out it wasn't very good, so... Seeya!'
That is one of my problems, once I see an rp and it looks good, I join, then once we start roleplaying everything starts going down and I'm not interested anymore TT_TT Maybe its just me.