"The study of this Book is forbidden. It is wise to destroy this copy after the first reading.
Whosoever disregards this does so at his own risk and peril. These are most dire.
Those who discuss the contents of this Book are to be shunned by all, as centres of pestilence.
All questions of the Law are to be decided only by appeal to my writings, each for himself."
I find this frustrating, because observation shows this to be a deliberate paradox with part of AL II,76:
"What meaneth this, o prophet? Thou knowest not; nor shalt thou know ever. There cometh one to follow thee: he shall expound it."
It's a failsafe to prevent fundamentalism. It encourages Thelemites to break the rules. Does the second sentence of the comment not challenge us to be Fools? And presuming that the meaning of the cipher is of great import, which is likely, all those who won't discuss AL will shun, and be left behind by, Thelema when it evolves to it's next vibration.
I'd really like to hear how people who don't discuss AL rationalise their decision.