This will happen after the last loot goblin dies
You get 50% reputation boost
That is huge, let me give you examples:
Ravenholdt rep:
You need 1405 boxes after you hit revered
Each quest turn in provides 75 rep
You need 5 boxes
Rep buff now provides 112 rep, humans get 123 rep
Darkmoon faire buff is July and the event doesn’t end till July 12
Darkmoon faire rep gives you another 10%
Humans with Darkmoon faire rep: 136 rep
112 rep = 940 boxes
123 rep via humans = 850 boxes
136 rep via humans and Darkmoon faire week = 775 boxes
And not just ravenholdt
You got bloodsail buccaneers, you got netherwing rep from outland, you got molten front rep
You got hero of Shattrath rep where you need to be exalted at least once with Aldors and scryers
You got the frenzyheart and oracles rep from scholazar basin or whatever it’s called
After this event is over, you SHOULD BE PREPARED, you’ll never get an easy rep farming moment like this again