How are some people revered with Golden Lotus already? Do you get rep in MV or something?
If you get a ancient guo-lai halls key, you can open rare spawn chests in guo-lai halls, which will sometimes have an item that gives rep with golden lotus instantly
There were people also exploiting CRZ groups to get extra dailies
"Peace is a lie"
Also there is the Pipe that drops of a rare mob, granting 1000 reputation too all Pandaria factions
a couple guys who were around all week exploited CRZ or did some alt transferring or just generally camped the rare peace pipe mob and hit exalted fast before the item was nerfed. they're really going berserk on the auction house now. lucky dudes! i heard they're pulling down millions (six zeros!) of gold on US KT, but these guys had millions already so the rich get richer, obama's fault etc.
Guo-lai Hall chests also always contain a reputation item, and have a chance of including another epic reputation item for an even higher amount. Albeit rare, they are very farmable. The chests are also more plentiful than many might believe.
I have only been doing the dailies since the day after launch and i'm 4000 rep from revered. that is without looting a single cache cause i can never find one. So I can imagine with looting a few caches it would be easy to be revered by now.
Not really an exploit but this is how it's done..
if you go down into the tunnel towards the vaults, there's a table in the middle of the room with a dog on each side. These have the same chance as dropping anything as any other mob...
BUT... They respawn INSTANTLY and have low health.
Get you on one side of the alter, and a friend on the other and just keep nuking them down. After an hour or two of just continually killing these mobs you'll have a whole stash of keys, and probably more Spirit of Harmony's than you'll ever need.