In HN's case, we're optimizing for signal/noise ratio. The trouble with humor on HN is not that it's bad, but that—if you have a lot of it—you also get a lot of noise. There actually is a genre of humor that does well on HN; you might call it high-signal humor. It's rare, but it exists. This comment wasn't that.
There are other places to get internet humor, like Reddit comment threads. When I read those I'm astonished at how good they are at what they do. HN is never going to be that, and we shouldn't allow an imitation of it to detract from our core.