Is Halo overrated anymore by the gaming community? I say fuck no! Not even close, hell it's a lot close for being underrated than overrated by the gaming community.
Sure the media and journalists pay tons and tons of attention to Halo, but think about the gaming community. If you make a thread asking their favorite first-person shooters or favorite games, Halo is one of the least chosen games. Hell, even games like fucking Haze and Black are chosen more than Halo. When a person makes a negative statement towards a Halo game they're often flirted with compliments, however if they make a positive statement towards Halo they are often insulted. Very few gamers within the community are fond of the series or any game within the series. People claim it's overrated by a lot of gamers, but in reality it's not. Even the Halo haters are more vocal than the fanatics. Even games like Psychonauts, Beyond Good & Evil, Killer7, and Lost Odyssey are closer to being overrated than Halo by the gaming community. If you ask me, currently it's a lot more overrated to mindlessly hate Halo than to mindlessly love it.
I'm not of the fan of the series as a whole by the way. I love the first game, I strongly disliked Halo 2 and I liked Halo 3 but not as much as Halo CE. Halo 3 ODST was very good but it was overpriced for an expansion pack, Halo Wars was fairly decent console RTS. Is the Halo series even overrated by the gaming community anymore?