people some games are impossible to get all 1000 points and require insane amount of time to be spent on the game. Quake 4 for example has unrealistic achievements, some games require you to get to number one ranking online-impossible, because you have to be one of the first people to get the game.
80% to 90% completion of achievement points in hard games is a reasonable effort.
game sharks can put in achievements that you can not earn and save you time







