Nothing should be considered lame in league games, as long as it's legal. There may be exceptions to that of course, but surely using an aspect of the game mechanics that could not possibly be identified as a bug is legal. That is to say, there's no realistic way to identify an act of intentional notching, unlike say, intentionally getting extra angle with your bat. Notching can't be regulated, and is as much a part of the game as say, jumping. Also fr4nk, you and all of us who BnG with feel use notching as well, because our eyes are trained to identify the discrete angles we see.
I used to think notching was going to be an easy 'fix' and it would just disappear in an update, but I've been shown that's really not going to happen, and it's not clear that most people want that to happen. If you guys think it's 'lame' in that it ruins the scheme, then I guess you should just stop considering the scheme skillful, but you shouldn't be blaming players who notch, or those who follow the rules.