If I were to start a thread and start saying that VB.NET is stupid, some VB.NET developers would get offended but some C# programmers will find it witty
If all you said was that VB.Net was stupid then I doubt anyone would find it witty. If you were to crack one of your usual puns at the same time then it would be witty. I honestly can't see anything on his site that would constitute wit. I'm not arguing that we shouldn't be allowed to offend, but if your only purpose is to offend then you are just plain offensive.

Comedy is a grey area because a great deal of comedy is offensive. I don't have a problem with that. But, in all honesty, I don't see anything on that guy's site that even comes close to humour.