I actually think keeping flying back

I actually think keeping flying back until at least max level is a good thing.
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But flying is one of the most important features of WoW, that gives players a sense of a large open world and freedom! So it's important that it exists.

What I wouldn't mind though is to see if Blizzard could figure out a way to make flying dangerous... at least as dangerous as riding on a ground mount. Have airborne mobs here and there which attack (similar to the NPCs over faction capitals) except all over the world.