I have to say I find the comments about Ari completely off base, tactless, and ill-informed. I've talked to Ari a decent amount on ENWorld the last three or four years, and the guy is a class act. He generates high quality writing and ideas for D&D (whether 3.5 or 4e), and is enthusiastic about his gaming, which comes across in his writing. He is also open to fan suggestions and criticisms, and strives to incorporate their feedback and ideas into his work. His books are among the most used I own (Heroes of Horror was awesome, and the APG is a huge hit at my table, for example), and I can't recall a single time of him being negative or condescending to other posters. He seems to live by the motto "if you can't say something nice, say nothing at all."
Ari also has never claimed 4e is perfect- in fact, he's said in a few threads it has its issues, but it excites him to write and play in a way 3.x never did. He makes insightful and respectful comments in discussions, always contributes something meaningful in my opinion. I don't always agree with him, but I respect his opinion, and him as a person. I couldn't ask for a better game designer and guy to be active on these boards. So Ari, if you're reading, quite a few of us have your back and love your work! Don't let this chump's comments bother you at all.