I'm really enjoying being over at Cartomancy for a lot of things, however DDwarks already asked the question about having a Thoth forum, and this was the reply...
"Hi all,
Thanks for your enthusiasm! I'm not going to tell you to get lost for asking an honest and polite question.
I will have to ponder this and talk with the mods. I don't want to start making specialty forums for specific decks, because then everyone will want one for their favorite. (Their own... their preciousss! Very Happy)
I have an idea for some options, but I still want to give our virtual dust a chance to settle before we make changes. If we need to grow, I'd like to grow organically from what we see is truly needed to make the forum easier or better to use.
In the meantime, you could try working with the Tarot Deep Dive as kali suggested; and other esoteric stuff is welcome to go in the Spiritual section. You might even benefit from finding that non-Thoth folks enjoy talking about Golden Dawn-style kabbalah (or qabalah if you prefer); but we won't know unless we try.
Thank you all for taking time to share your viewpoints."