Jake Fogelnest is an internet troll. A troll is someone who posts inflammatory, racist, homophobic, or off-topic messages in an online community, such as a forum, chat room, or blog, with the primary intent of provoking readers into an emotional response or of otherwise disrupting normal on-topic discussion.
Fogelnest has alienated many in the New York entertainment community so he moved to Los Angeles where he is creating a nuisance. He isn't a professional by any stretch of the imagination.