Stance on powerleveling in low level dungeons when other players are there?

[Midoo]

My Iksar is in his early teens and I feel bottlenecked into Kurn's tower but whenever I log in there's a druid powerleveling some dude and I can rarely get any spawns. Is it legal for plat starved minmax geeks to fly over all the way from Faydwer, clog up low level Kunark dungeons and push the races that spawned right next to them into low xp low zem outdoors just because they like the place better?