It's certainly not as funny as it used to be, but that's more due to people getting USED to the humor. But it is still somewhat insightful, somewhat entertaining. For a while there his videos took a serious hit in terms of laughs, but he's been getting better in recent days. I like his Extra Punctuation articles better than his ZP videos though, and I don't see that changing.
It's just a suggestion, but I think he can do two things to improve Zero Punctuation:
1) Make them a bit longer and a bit less caught up on just blasting a game. Harsh criticism can be funny, but grows predictable. Even if he doesn't like a game he doesn't really have to resort to absolutely slamming every single thing he doesn't like. There's more to humor than insulting things. Different kinds of humor would be welcome.
2) Speak slower. If you listen to his original videos, he did not speak that fast. He still spoke without really pausing, but his voice was delivered in slower, quieter tone, which for me, made his videos more enjoyable. In his recent videos he speaks very fast (although he is not hard to understand) and much louder and angrier.
3) Bring back the old music intros. I know there's copyright issues and all that, but the old music clips were better, and as long as he only uses about 10 seconds of music from a song, he's not breaking any laws. Maybe he got tired of hunting for songs.
To be honest, ZP could never have lasted forever. Which is why he's branching out. He's opening a bar here in Brisbane (which I will not go to because I do not drink), as well as writing a book (which I probably will not read, but I'm willing to give it a browse in borders). He probably recognizes that ZP will eventually lose its charm. In fact, I get the impression that he really is quite tired of ZP, tired of the escapist, tired of the fans, tired of being known as the "ZP guy". I know I'd get tired of it. He gives off the impression that what he really wants to do is make games or somehow get more involved in the video game industry. To which I would say - don't do it. You're making a living off ZP and being funny. Being involved in the video game industry is stressful, expensive, stressful, risky, stressful, often unrewarding, and stressful. Did I mention it's stressful?