Yo, Milkbone dissed Eminem back with his track "Dear Slim" which was a whole track dissin Eminem, Eminem never even responded to it, yet he wrote a full dope diss track about DJ Lethal already and hell, Fred didnt even do anything wrong.
My biggest guess would be so that he doesnt give Bone a name for himself, but then again, he disses Cage all the time.....
Well, Milkbone thought Slim was talking about him, but really Slim said he was talking about how white rappers are stereotyped.