I'm for them but only if they do something like burning crusade, you had to lvl up so I never missed any content. But I do agree that it can ruin world pvp because it will change how people play, with flying mounts you can just fly all the way up and go afk but without them you need to find a spot to hide and if you don't someone will find you and most likely kill you which causes you to want to kill them and before you know it a battle has started, I liked the flying mounts because it gave you a feeling of more freedom in the game but in contested areas in WoW I would barely ever see anyone and my server had a high population, and when you did finally see someone they would get off their flying mount, kill you, laugh and fly away never to be seen again. I think if they didn't add flying mounts I wouldn't complain, any mount is better than no mount *cough cough* GW2 *cough cough*