Finally, Scientology did the same thing and denies it much more fiercely than the average witch, so I truly mean no offense to either Thelemites or Wiccans.

Oh, I took no offence. I'm often amused at how many Wiccans, especially the "white light" sort, so vehemently deny the historical connection with Crowley (though it has been quite well documented). And I don't really know enough about Scientology to have made that connection. Interesting.