Double Experience for each level 60.

[AskaRay]

Its not a MOBA, but this is how every game works. If you play more classes you learn how they work beside your own. This is true for EVERY single RPG ever made down and back then when people played pen and paper knowing the ins and outs of every class gave and still gives you huge advantages because even if your not playing it you know how to exploit weaknesses with them.

So not only is easier learning for new classes beneficial for you, its beneficial for you as your first 60 as well. Which makes better players.

I certainly agree knowing about other classes helps you with your own but... I still see no need for the "GOTTA GO FAST" you seem to want. The leveling curve is fine where it is. They'll increase the EXP reward again in 4.0 if the level cap increases (and maybe even if it doesn't). There is still no reason to level so fast. It's not because "we did it so you have to, too", it's just....pointless to do so.