I dunno, could just be that he's antagonistic by nature but also could just be that he wanted to get a lot of publicity for betapunch. I'd assume a lot of people who have never heard of betapunch, have heard of it now and he'll probably get a few users out of it.
You're getting downvoted but you are correct and he could very possibly have used this as a strategy. Anyone who doesn't recognize or even consider that possibility doesn't fully understand the nuances of PR.
The idea is that there is a net gain. People will remember the name and forget the bad rep. The amount of people who remember or stop doing business is less than the amount gained by the bad publicity.