@Conzei said
"5. Right, I've read a lot of mentions of some "Grant" person...I guess I'll have to look him up as well."
I've never read Kenneth Grant, but from what I can tell from discussion based on him and his work, his approach to Thelema is rather distinct and is not the same "flavor" that Crowley taught. That doesn't necessarily imply anything, but I'm noting that he isn't usually grouped in the same list of "here is a bunch of people initiated in Thelema - read everything they every wrote." In particular, he began the Typhonian Order, which was initially called the Typhonian O.T.O. He claimed that he discovered a "Sirius/Set current" and based his O.T.O lodge around it, which displeased Crowley so much that he kicked Grant out of the O.T.O.
But by all means, read everything that interests you and form your own judgements.
@Conzei said
"I'm also wondering how relevant Hermeticism actually is, do all indoctrinated Thelemites know Hermetic texts? ( indoctrinated is perhaps not the best word, initiated? I know there are several ranks and that you're supposed to go to a phisical place and practice in groups."
I'm not sure exactly what you mean by "do all indoctrinated Thelemites know Hermetic texts?".
Initiation is its own story, and there are various orders linked in various ways (or not linked at all) to Crowley. They all operate in different ways, though obviously having some elements in common. They vary from being as legitimate as it gets to being blatantly fraudulent. The Temple of Thelema is associated with the Estai lineage of the Order A.'.A.'.
Thelema doesn't have to be practiced, or studied, or enjoyed, in alignment with any particular group. It is, however, best understood by applying its principles, as you understand them, to your life.
But yes, many Orders do require study of the Hermetic Arts as part of their curriculum, have grades or degrees that measure spiritual growth, and meet in physical places to do various things. Some (many) are group-based, and some (mainly the A.'.A.'.) are solitary systems. (Not that you're totally on your own, but you work on your own and have someone of a higher degree or grade to mentor you and test you.) You seem to have the basic idea of it down though 😀
93, 93/93.