And calling GG before the losing side does it isn't a form of bad manners? It sure is annoying to play vs ai but you should respect your opponent if he prefers to take bad chances and stays in a game. I don't think complaining whether in team chat or on forum will help you change anything so you might aswell just be the better person here and present fine manners and show of your gameplay and build on your advantage, most people will drop quicker that way.