Most of new features are useless, so it does not matter that they are buggy. Only consistently useful features require bug-fixing. It is better to spend more t

Most of new features are useless, so it does not matter that they are buggy. Only consistently useful features require bug-fixing. It is better to spend more time fixing bugs on few useful features after they implemented and tested by users, than spend time polishing all features (including useless features) up-front.