I also disagree that players should "just play their characters and roll with the punches where they land", or however it was put. I believe that there is a certain amount of metagaming that should be implemented, for a variety of reasons.
For instance, I believe that high-powered monsters should try and avoid rezzing through low-level characters and new players. I also believe that certain types of roleplay are better left for other venues. I believe that long-time players should do what they can to get newer players more involved, such as passing on certain mods, or taking along newer players and being safety net for them while they run through the mod. Do they all have to look like Polare building a house of apprentices? No. They can be someone catching a new player thieving badly and pressing them into service through the law. It can look like someone getting assigned to watch over someone. It can be any number of ways. How such actions manifest is always up to the player. I strongly believe that players have a duty to one another to try and improve the enjoyment of the players around him or her. If you play a character that reduces other players' enjoyment of the game as a whole, you may need to either change or go elsewhere.
I firmly believe that players should try and work with plot to create situations for people to have fun. If you see a player that is new, and kind of stumbling around, but your character would "never" associate with them, talk to plot and see what can be manipulated to make things happen. If you have a goal for your character, talk to plot and see what they believe to be viable.