Only Noobs are scared of Twitch, it's that simple. Why are you people complaining how overpowered he is, after feeding him 5 kills? Why don't you guys say Master Yi is overpowered, huh? He can rape anyone if he gets fed. Twitch can't do anything if it's not 1v1, he can only go for cheap kills at the start, these can obviously be avoided, if you are just a TINY bit cautious. Twitch owns everybody if he's fed, yes I agree, JUST LIKE ANY OTHER DPS CHAMPIONS. Don't come to the forums complaining how easy you got killed using a Corki or a Annie, if you're a support, just do what you're suppose to do and recall when you're on low hp.
When Twitch is at top/bot lane, recall on low hp and don't get greedy getting some extra 20 gold, when you die, you'll be giving Twitch 200 gold. In mid, simple, drop a Ward and he can't do **** to you. When I play Ashe at mid, I can own most Twitches. The main point is being cautious and be aware of where Twitch is.