Hemera
Bill Greer, the maker of Morgan-Greer tarot was a member some years ago, wasn't he?
And several others.She also created the Book of Shadows - As Above and Book of Shadows - So Below decks. Just pulled them out today, in fact.
I'm not as sure as Nemia...Would this list include people who signed up purposely to, excuse the bluntness, plug their decks or whatever it is they're selling? Because those are actually quite common, but they rarely stay for long or make really meaningful contributions. Still, they are technically members.
Good point.Bill Wolf made Bill's tarot and Le Tarot Tournant, too.