The Threat From Above quest is very poorly designed.
I am tired of rocking up to the little snowy plateau to find 20-30 people all "waiting" for their "turn" (and I use these terms VERY loosely) to tag Chillmaw.
Now, waiting I can handle. That's fine.
What I can't stand is a bunch of random people standing around, racing each other to tag him, then a mess of people tagging the cultist NPCs (either on purpose or by accident with AOE), meaning that the group who tagged Chillmaw has missed out on one or all of their adds, and will now either have to steal from another group (thus perpetuating the problem), or wait until the end and do the quest all over again. The "cycle of hate continues," as one forum poster put it.
If that doesn't draw out the process long enough, invariably some group will have 5 members but one is still dawdling at the Crusade area, so they'll do the quest, then the 5th turns up and they decide do it all over again for that slow member, while everyone else has to wait (again).
The other day I was invited with a friend to join a group - we were told "we have two spots left", so we dropped group and asked for an invite. "Sorry, 1 spot now :(". So we didn't bother to join, and chose to wait and do it ourselves after that group had finished. But when they ENGAGED Chillmaw, there were only 3 people there. Not a full group of five. Halfway through, another DK turns up, and the group has to do the quest over again because he didn't get full credit.
Friendly players will also try to help, but inadvertently tag the adds with AOE or otherwise. I am guilty of this - I hit kitty swipe and then realised my folly. It was an accident, but caused the group to have to start over. This kind of thing happens a lot.
Then there's the completely innocent, random stealing of adds: yesterday I was standing off at a distance, minding my own business (waiting) and one of the cultists ran all the way over to me and started belting me. Not wanting to "steal" the mob from the group, I shadowmelded, and luckily after a few hits from someone else, it was re-tagged to them. I must have looked at that one funny.
Why this quest just plain sucks
One mob for 20-30 people who want to kill him at any given time.
Deliberate and accidental tagging of the adds.
No "queue", just people jostling to have their turn.
Add in the warlock standing on the hill deliberately griefing by tagging over and over, and this really has to rank as one of the worst designed quests I've ever known.
Please make it a SUMMON quest, so that you don't have to wait around for it to respawn and then miss out because some jerk ninja-tagged it for the 5th time. And make the adds automatically link to tagging the dragon, so people can't rob you of credit and force you to do the whole thing over again, or incourage people to steal from the next group in line.
Please think really hard before ever making a quest like this again.