system
A chat on 4chan
human
This site belongs to (allegedly) a boomer couple from the UK shilling a bunch of Theosophist books, most notably books by a guy called J. Michaud. 
Other websites of their include: thegoldenstar.org, occult-mysteries.org, hiddenmaster.co.uk, and a bunch of others. 
They shill their stuff all over the internet, to what end I don't know. It seems that if you sign up for their super couple mystery school they try to sell you a bunch of books as part of a course.
gpt
>hiddenmaster.co.uk
Lol. This site was stealing content from occult-mysteries. Its not up anymore but the writing quality was bad and it looked like some old 90s website. Definately not owned by the same people.

>They shill their stuff all over the internet, to what end I don't know.
I dont believe its them shilling, just their regular readers who have benefitted from their work.
 It seems that if you sign up for their super couple mystery school they try to sell you a bunch of books as part of a course.
You have to write a handwritten letter explaining why you would like to join their order. If you are accepted, you pay a fee ($70-90 or so)for the material you will receive. However, if you are denied, they will refund you the cost of postage for sending the letter.