Most of the long time users, like myself, only create skins for personal use.. as geoshell skins are very easy to make, it is actually more time consuming to polish and package a skin that it is to create it in the first place..
If it weren't for the fact that i'm trying to batch script most of the work involved, I don't know how active I would really be..
Oh, and if it weren't for the fact that I had a bunch of skins I released way back in the day that needed new hosting.. not to mention updating to the new skin standard (well, the dust hasn't settled yet.. not really.. I'm waiting for the next release.. the settings should be fairly stable for a while after that I'd imagine)..