Not quite, tokenadult's username isn't not a tongue-in-cheek insinuation. The username originated on a website (http://www.artofproblemsolving.com/ http://www.

Not quite, tokenadult's username isn't not a tongue-in-cheek insinuation. The username originated on a website (http://www.artofproblemsolving.com/ http://www.artofproblemsolving.com/) where the majority of users actually are children, and he just chose to re-use that identity.