Abomination Factory Vendor Exploit (Minor)

[JustHunter]

Once you build Atticus he sells a bag of sin stones once a day, however if you purchase then open them while mounted you can close out his vendor window and repurchase them infinitely. May work with other vendors (that are far more lucrative if you look)

-edit- Appears to have been fixed with latest hotfix, although I would encourage looking at other vendors

[KuRIoS]

Thanks for posting +15 rep

[icecreammage]

I haven't seen him sell those to me ever. Is it locked behind the second upgrade level of Abomination Factory?

EDIT: Okay did some digging and found out that you unlock that item through the quest "An Abuse of Power" in Revendreth.
An Abuse of Power - Quest - World of Warcraft
You don't have to complete it all the way but partially through until you start turning in Sinstone fragments for dailies.

Second Edit: I opened the window while mounted, closed the vendor window (while still mounted) and opened the bag (while still mounted) and then went to purchase another but he won't sell me another.

Third Edit: Waited another 24 hours to try this again. I kept the vendor window open while mounted, did /use Bag of Sin Stones and then closed out of his vendor window and re-opened it. He still did not re-sell it.

[icecreammage]

I still haven't been able to recreate this three days later. Anyone have any luck with it?
If so, what am I missing? D: