American board member who joined in July 2007 and has been a common presence on AH.com ever since. His original username was “demonkangaroo”, but he changed it to Guildencrantz in the latter half of the 2010s. (Probably because people kept mistaking him for an Australian.)
Well, demonkangaroo really hasn't done too much yet.
Participated in AH.com Eternals.