Honestly, I don't understand why everyone has to gripe about fates. Sure, fates do give you boatloads of experience, but they are there to serve two purposes.

1. To bring people who would otherwise not party up a chance to play together and offer a sense of community through fighting against a common threat.

2. To offer a chance for something spontaneous and out of the ordinary "go here do this" type of questing. Some people play for that, and other people play for end game content. If you only care about end game content then fates are an excellent source of xp and rightly so.

It shouldn't matter if people use them to level, because what does it matter to anyone but them? If we are concerned about newbies leveling too quickly and "ruining" in-game content (which I have seen complained about) then find a free company or friends to hang out with and run the dungeons together. If it's about the "economy" of the levels, it's ok...