Even if there are respawning mobs at some locations in the game, there is no infinite leveling. As soon as your in-game avatar is 5 levels above enemies, the XP gained will be 0.
Of course, if you return to Broken Valley when you're level 30+ mobs there will be very easy since they're all level 27 there. Same for Aleroth. The point is to try to do everything when your level is the same as your enemies.
Last edited by virumor; 07/01/10 03:00 PM.