Fett
From Fswiki
Fett is one of the main characters in Forum Stage. From the episodes we've seen thus far, he hasn't spoken very much, but he has informed various characters about various subjects. Examples are him telling YesIAmAnIdiot about the "chat room incident" and telling Hundera that he could only light Gamexprt on fire on Wednesdays. Perhaps we could suggest that he's the "brain" of the group.
DEBUT: Internet
Quotes
Oh, no one's gone to the chat room since the incident last month.
-To YesIAmAnIdiot in Trivia