I went Area51 proposal page. There in the Who is this site for? section I see a strange warning as below: (to see it, focus the "This site is for" text box)
Is this a random name? or any fun behind that?
Because I can't find any reference for the Uncle Marv in Internet.
Quoting the message for better future search:
Your site should focus on pilots, not passengers; lawyers, not lawbreakers; professional photographers, not Uncle Marv with his digital point-n-shoot.