I can see that the Parser can be seen as a grey area, but it doesn't modify any of the game data files (but it does read and analyze it based on the player's damage output), but on the flip side: it doesn't lead to unfair balance nor advantage. It allows players to improve themselves.

And for those who want to nitpicks about PS3 players. No disadvantage here. Just ask a friend who plays PC to run the parser and they can give the necessary information.