I only got to try this once before the servers went down today, so i will have to wait to confirm and or make a video but I did want to see if anyone had posted this before or experienced the same thing. Although this might be working as intended we all know blizzard hates you farming an instances. "You have entered to many instances recently" anyone?
Go to the Hyjal Summit raid
Skip everything and mine gems from surrounding areas
Talk to proudmoore and start phase
Walk out of Hyjal
Log out for 15 mins for "soft reset"
(If you have an alt that can mine i suggest you log him and follow the above steps)
Log back in
Walk back in
Profit
the soft reset should have hit and you should see gems spawning again, also do to the fact that your doing it in 15 min resets you will
never get the faming buff. Doing this on multiple alts can be quite profitable. When the servers come back up ill try this again to confirm.