My bad. Not "jeno" but "Geno."
Sometime in 2001, members of the Something Awful forums began raiding the site in large groups who called themselves “Geno.” Members would change their display names to Geno or similar phonetic versions of the word including jino, geeno, or gino sometimes followed by numeric characters. Additionally, members of the group distinguished itself from other Habbo Hotel users by dressing their avatars in all gray clothing. They would block off exits or doors in the game or fill up rooms to disrupt normal users. During the raids, Geno members would line up and repeat several phrases including “the path is the way” and “the way is the light.”
Somethingawful are experts at the long con. Nobody remembers the Geno invasion anymore; thus, that whole "archangelle" thing appeared organic. It's all lulz, though.
Probably the best document is this one.
Send me a PM and I'll send you another.