Wikipedia describes its origins this way:
The Scriblerus Club was an informal association of authors, based in London, that came together in the early 18th century. They were prominent figures in the Augustan Age of English letters. The nucleus of the club included the satirists Jonathan Swift and Alexander Pope. Other members were John Gay, John Arbuthnot, Henry St. John and Thomas Parnell.
The group was founded in 1714 and lasted until the death of the founders, finally ending in 1745 … Working collaboratively, the group created the persona of Martinus Scriblerus, through whose writings they accomplished their satirical aims.
The club began as an effort to satirize the abuses of learning wherever they might be found, which led to The Memoirs of Martinus Scriblerus.
We thought an informal association of established authors sounded about right for this day and age. Membership criteria are linked from the Navbar, under the heading Membership.