2. Geek triumphalism. The appeal of geekiness before this decade is that these people (of which I was kinda one in high school) knew that they were still relatively powerless and had to find solidarity with fellow weirdo outcasts where they could, even if they couldn't see eye to eye on everything, and then eventually they'd graduate high school and find out that the world actually wasn't out to invalidate them, and maybe they'd lose the persecution complex and grow up a bit into genuinely fascinating idiosyncratic people. Now there's too many overgrown manchild types whose every whims are breathlessly catered to by Hollywood and the video game industry and the internet, and geek culture has this weird sense of spoiled, complacent, bullying, nostalgia-slave entitlement to it now. Geeks are the hippies of our times. I think that makes Harry Knowles our Wavy Gravy.
I'm with Joe: this is great. I am a pretty big geek, but I don't get the slavish devotion to terrible things (the Watchmen movie, Dollhouse, etc etc etc) because they are made by card-carrying geeks.
Other things I'd like to see go away:
1. 90% of Boston Red Sox fans (there are a few decent ones out there that should be spared)
2. Kevin Smith
3. Chuck Klosterman
4. People who want to talk about how much better The BBC Office is than The American Office (related: people still mad about Arrested Development getting canceled)
5. Horror movies that are more gross than scary
6. Foursquare