Here's my one legit reason for "hating" anime: a lot of it is just cheap, low-budget crap that has so little actually animated, that it's a wonder how it's even called "animation" in the first place.
Like, the animators cut so many corners to save on budget. Whenever characters talk, their mouths are conveniently off screen, and they never gesticulate, so it's basically a still image with some voice over. Or characters speak to each other, but never turn to face the person they're talking to, so it's just a two frame loop of their mouth opening and closing.
Then the fight scenes: it's usually just some character that shoots a laser out of his hand or sword because they can't be bothered to actually animate two fighters in physical contact. And maybe there's some big explosion and then the character is just standing there, the only thing animated being his clothes being blown by the wind...
Like, I watched an episode of Bleach once, and the entire episode was the characters just standing in front of a door.
It puzzles me when people say something like they love the anime cutscenes in stuff like Persona 3, when the cutscenes are really just characters standing around and not doing anything while their clothes blow in the wind, or they're just hanging on a crucifix or whatever. Nothing ever happens!
Compare this to "western" cartoons (which are often animated in countries like Korea or whatever) like Avatar or Korra and you've got characters moving all the time! Even when they're just talking to each other, they're moving their hands, or people in the background are moving their heads to face the characters talking, while in anime, they'd just be standing there with their mouths flapping at two frames per second, then striking "cool" poses when they're supposed to fighting.
Of course, not all anime is like this. While watching that episode of Bleach on Adult Swim, an episode of Full Metal Alchemist followed, and the characters were freaking running at each other, bobbing and weaving, dodging attacks, and actually fighting instead of shooting BS lasers at each other. The difference in quality is night and day. Not to mention amazing stuff from studios like Ghibli and Madhouse...but most of the anime out there don't have that kind of talent working on it.
Most anime seems like cheap cash-ins, but many anime fans tend to put all of it on a high pedestal, just because it's called "anime."
Even with my purported "hatred" of anime, I still love anime stuff. I love Persona 4, I love Ace Attorney, I love Danganronpa, I love Ghibli movies, I love Satoshi Kon movies, I enjoy many Final Fantasy games, and so on and so forth. I even continue to attend anime conventions and participate in cosplay...mainly for the video game-related stuff.
Anyway...there's my anime rant in the Giant Bomb thread. This killed some time while I wait for my laptop to update Windows...
