a friend of mine is not only part of the OTO but way up in the hierarchy.

from him i received 2 prints of the Doomsayer’s Digest. This is a journal where the OTO tries to continue the works of Crowely.

for what i know about him, the OTO (mostly from him) and about the texts of Crowely himself, they are absolutely serious about this.

in my mind Crowely himself was a maniac exploiting everyone around him and driving multiple people into insanity and poverty. I do think what he himself went through to get to the point where he claimed to be the avatar of some being is very similar to what a lot of esoteric people experience - i know a person who claims she knows that god exist, because she went on a hike with him (while on a daily does of speed, mdma and DMT for a year!)

edit:

i asked on my friends opinion on this... curious to see what he replys