A Level System

[Shadow]

With the global account functionality, no reason to not collect all of the titles.

What I would suggest is that you can choose 1 "effective title" from all of the titles you have collected, and you get the bonus for that one, while the rest of your collection would be purely cosmetic. That way, it would not severely imbalance the game, while still giving collection incentives.

[Yellow Eyes]

I don't think having multiple levels working for you at one time would imbalance the game. It would add another layer to the game. New players working with each other to get more titles, working against each other to rise the titles. I think the game needs to be more than just networth.

[Durza]

Shadow's idea is what is what would probably work the best, and it just takes time to work out the details.  the effective title i mean