The irony, or humour, is that Crowley called his 'aphorism for ultimate liberty' a law that his followers must adhere to. That has a whiff of "ideological possession", wouldn't you say? But where Crowley's aphorism spectacularly fails is in his claim that one can only learn their "true will" from conversations with their Holy Guardian Angel. How many Crowleyites, do you reckon, have actually entered into discourse with a true, factual angel? Would you say the number is exceedingly small? If so, that means that Crowley, while advocating liberty, actually led people to self-delusion. Not that "superior" an ideology, is it? With respect to Jimmy Page, it's pretty self-evident that he did seek to emulate Crowley (he bought Crowley's house, became a hard-drug addict, indulged in perverse sexual practices, and practiced ritual magic with Crowley's portrait prominently displayed is his ritual room (see the Youtube video)). It's highly likely that Page learned about The Goetia from its Crowley association, and used that book to perform rituals that led to Jimmy's almost miraculous finding of three exceptional sidemen, followed almost immediately by their extraordinary success. However, as that much more reputable magician/teacher, Franz Bardon, cautions in his second book, The Practice of Magical Evocation, for someone how hasn't already attained Gnosis to attempt such an operation will ultimately lead to disaster... as is observable in Jimmy's, and Crowley's, lives. That's another reason to think twice before immersing oneself in Crowley's/the OTO's "magickal" teaching.