This was taken 10 minutes after 2.3 went public and the Nazjatar realm was back up. With the release of new items from the Heroic Badge vendor, it looked like half of the server was there.
Considering we have Arena Season 3 coming, I suspect this will be repeated -- only this time at the PvP gear vendors, and not at the Heroic Badge vendors. Well, except there will likely be a lot of bodies laying around them on PvP servers as players kill each other for the chance to get their gear.
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