I really tried to like World of Tanks, but I got really frustrated by one aspect of it. (And I admit, this probably has more to do with me not knowing what I'm doing than it being bad)
First, remember that I'm in an early level tank (level 1 or 2). I'd go find a good position on the map, behind a building, waiting for a good shot. An enemy tank would come around the corner, not immediately seeing me. I'd shoot it (at point blank range). And do no damage. And again, no damage. And again, no damage. He'd eventually notice me, turn, and shoot me a few times killing me.
I've been told that's because their tank is too high level for me to kill? Or that if I had a better tank, it wouldn't be a problem? I dunno, that really turned me off of the game. (and again, it's probably somehow that I didn't know what I was doing. But it just took the fun out of it for me)