To clarify: the Treehouse in this article is not http://teamtreehouse.com/, the technology education startup founded by Ryan Carson (whose posts make it to HN rather often.)
This made me look twice, as I work for (Team) Treehouse. Coincidentally, the last company I worked for was called Avatar International, so the company in the article "Treehouse Avatar Technologies" made me do an extra double take.
I'm surprised Ryan hasn't received an infringement letter from Treehouse over the name Treehouse.