I don't think that this is a repost, but there is one similair though this is way more effective.
Requirements:
WPE Pro
Perm Edit
A private server with any vendor selling Primal Nethers 1000g a piece
Basic:
1) Activate the buy everything 100% free filter (WPE Pro)
2) Find a vendor with Primal Nethers
3) Buy 21 x 20 Primal Nethers
4) Sell them again
Advanced:
1) Start WPE Pro
2) Grant access to WPE Pro with Perm Edit
3) Open WoW
4) Make a new filter
4,1) Find Offset 028
4,2) set the parameters; Search 01 and Modify 00
5) Target WoW.exe with WPE pro
6) Activate the filter
7) Log into a random character
Find a vendor selling Primal Nethers
9) Shift + click the Primal Nether and buy 20
9,1) Let your gold reach 0 and keep on buying nethers when it does (you will still be able to buy the Nethers)
10) Do step 9, 21 times
11) When this is done you can sell every single stack with 20 primals for 10k gold a piece.
12) Deactivate WPE Pro
This is way easyer than buying 1 Primal Nether at the time.
//Boycott