I was half-joking, in case you couldn't tell by the Chappelle comment.
Nonetheless, my point was merely that people who tend to be closet racists often seem to point out things like how "articulate" a black person is as a sort of back-handed complement (again, leading into the second part of my post).
Ad Nauseam...sounds like a side-effect from taking a pill.
And you're actually right, it is a back-handed slap.
Remember Barbara Bush's remark, upon hearing of the New Orleans refugees after Katrina when they were sent to the Astrodome for temporary shelter: "It's better housing than they've ever had."