I am a direct source.  I am from the Detroit underground acid rap scene.  If you dont think its an actual genre you are deluded.  Not only is it a style, its a major style as artists like Kid Rock and Eminem demonstrate.  As these artists out grew the scene they dropped the name because it was too underground and mainstream audiences dont get it.  Its absurd that a single 3rd rate rapper would squat on a major genre and a bunch of know nothing experts on wikipedia would fall for a third rate marketing scheme.  No acid rap is not Esham.  He was a major influence on the sound and his label helped organize the scene.  Chance the Rapper is ignorant, but Wikipedia has no excuse in the face of overwhelming evidence.  Eminem was a Christian rapper before Acid Rap.  Kid rock was a Paisley wearing kid and play pop rapper wanna be.  Why did hire a midget rapper side kick?  I would have guessed that Chance the Rapper hired a professional PR head to mutilate Wikipedia.  But a moderator?  It gives Wikipedia critics credibility.