From reading this thread, it basically comes down to the people that don't ever "get it." OCS is a game. The people who don't ever realize it end up alienating themselves from the rest of their class by getting mad at everyone for something that would've happened regardless.
There are also those who think OCS means everything in the world and will therefore step all over everyone else to be best in their class (e.g. sucking up to class team). I think there's some overlap here with the first group though. OCS is an indoctrination program and means very little in the scheme of a Naval career.
If you want to be successful, be a team player, and never give up. You can put up with 12 weeks of just about anything.