*yawn* one thing people seem to think is that a mentor system should be everything from how to tie my shoelaces to teach me how to be the ultimate DPS PLD that noone else can beat in DPS!

As some people have put it, it is meant for the new to the game players, the ones that might even be new to MMOs. To explain things about the game(though that is getting a bit of a brush up as well(I had no clue what a tank was when I started back in the beta days)). Tell them about some quests they might want to pickup no matter what, how they can level, point them in the right direction if they're lost. Basics - stuff that a FC generally would provide but sadly a lot of blind invite FCs don't

For those that want to improve in their own jobs - you do this thing called... what was it... research yeah... that's it... research rotations, research your skills(you can do this while playing - read the tooltips(also those on your buff bars and such) and once you think you have a solid understanding maybe seek out some of the best players for your job on your server or just even your FC to talk about getting even better.

The worst they can do is say no I won't help you. But you would be surprised how helpful some can be.