I have one player in my group that has to study the rulebooks, read through all the source books and memorize every freakin’ thing that will min/max his player to the fullest extent. He doesn’t believe in role playing, but roll playing and throws a monkey wrench into the party, simply because he wants to do everything “by the book”.
The current Cyberpunk game is a good example.
The girls at the table just want to game, they create a character they want to play and don’t worry much about stats, feats or skills. Sure they are playing a solo but only using edged weapons and he argues with them that solos are good with guns and should have guns!
"What good about playing a Solo if you don’t have any guns with smart links and cybernetic arm," he states. He tells them they are doing it wrong and tries to get me to agree and I tell them that it’s there character and they can do what they please.
It seems like when a game is going good that the monkey wrench of rules lawyering is thrown in and derails the girls train of thought on the style of play.