I noticed when I was doing the biweekly quest for archaeology in Azsuna, of the three digsites, we had one in a PvP zone and one in a densely-populated elite zone.
I completed the quest, got the doohickey (lets you set up an enclosed area inside of which toons can fly), and I noticed: the PvP zone and elite zone digsites disappeared. But the normal digsites (and I think I was shuffling between three or four of them) continued to spawn.
I stopped after testing a couple of digsites (mostly because they only reward the crated artifacts, and I can get those with flying and lower-level mobs in Draenor and Pandaria), but was wondering if this is a bug, or if Blizzard is just messing with us (trying to get players to go into PvP zones, or group up to tackle elite zones)?
Edit: Sorry, wrong forum. Already reported the post to the mods with a request for a transfer to the Professions forum.