that whenever Danny pokes fun at a rapper, it's generally him trolling. I do think he has beef with Kids in the Hall though, I'm not sure what the back story is on that, but I know that he and Naledge used to be cool, now he takes shots at him.
But for the most part, if Danny takes a shot at a rapper, it's almost always for Lolz, and a few times he'll dis a rapper then end up working with him (ie: asher roth and blu)