This strategy is easily beaten though by stealing most pots and then not paying off the infrequent big bets (strong hands don't come often enough).

To dig deeper:

Or you can try actively punishing the big hands by folding out early. Of course, that strategy opens you up to being bled by your opponent bluffing strong hands. Attempting to actively punish the big hands here is a deviation. This is what jspiral means by "deviations from perfection".