Revelations of the Insider

Something unusual happened on the internet: someone, who suddenly appeared and just as suddenly disappeared, claimed to belong to a lineage that rules the World, and promised to answer any questions. At first, the statements of the Insider, as he... called himself, were perceived as yet another scam, but then everything changed drastically.
The answers given by the Insider showed extraordinary knowledge of history, deep understanding of philosophy, metaphysics, psychology, religion, magic, politics, and more. The facts and patterns he spoke of form a different picture of the World, significantly more complete than that of most people.
It was also astonishing that the Insider answered questions extremely quickly. The topics were the most diverse, and the answers, even the most complicated and detailed, appeared literally within a few minutes. This was undoubtedly beyond the abilities of an ordinary person.
As a result, so much information was provided in the "Revelations" that processing it could take quite some time. The questions remain open: Who is the Insider?
With what purpose are secret knowledge given to Earthlings?
When (and should we expect) the Insider to appear again?