I am reposting this since we are letting emotions escalate again. My idea to Balance flight, add content, and remove nothing:
As a PRO-flier:
Balance travel speeds, lower the skybox, include obstacles/danger
Lvl 20 ground and 60 flight move at the same speed - 60%
Lvl 40 ground and 80 flight move at the same speed - 100%
Lvl cap ground and flight move at the same speed - 200%
Flight is not affected by Racial/Class speed boosts, only ground mounts. So Paladins, and DKs will not lose their class ability, just as I would not lose my Storm Crow.
This means flight's only advantage is flight itself. However, thanks to NPCs with spears, towers with turrets, and the occasional sky beast (at your level, auto scales), you would have to watch out for just as many things in the sky as you would on the ground. If you take enough damage, you are knocked from your mount and likely fall to your death. Aggro for sky NPCs would be the same distance as it is for ground, and speeds would be about the same.
Also, adding in Aerial combat. This is mostly for the PvP realms and PvPers on PvE realms (of which I am NOT a part of). Now, when flagged for combat, you can still mount up to run away, BUT, your attacker can chase you. With Aerial combat, you can win either by killing your opponent in the sky, or doing IMMENSE amounts of damage to their mount (mounts would have 1.25 times the HP of a standard, ungeared rider) and force them to fall to their death. Pets from pet classes would NOT be available in mounted combat.
These are just a few ideas to balance flight without removing it AND, it will ADD more content and feature to the game, rather than detract from it.