I get that you're frustrated about her, but if she required no skill to play whatsoever, then there wouldn't be a positively sloped curve when winrate is graphed against # of games played. Annie does require skill. Some of the things Annie players need to be able to do is judge when to go in, judge what to do in a teamfight after she has used everything, manage her passive, build according to the situation, and play her lane effectively. She's really short ranged so it can be quite difficult to lane with her against someone who has higher range.