world of warcraft censorship?

my friend danny created a character named impeachbush on the malfurion server in world of warcraft about a month ago. last night a gamemaster messaged him to inform him that his name violated the terms of the game. he kicked the character off the server, and when danny went to log back in he was forced into a name change menu. i can’t seem to find anything in blizzard’s code of conduct that would forbid the name “impeachbush”. is this truly an example of offensive speech?