I was able to craft a Small Silk Pack with the Fine Thread residing in the bank similar to what retail has. I was only able to produce this once and could not continue afterwards. I showed where the 3 thread were in my bank and not in my bags and i started to craft. I purchased 9 more thread to make a total of 4 bags
I placed the 9 thread giving me a total of 12 inside my bank, but only 3 was used when making 1 bag
This can be replicated without any addons by making a call to DoTradeSkill()
I would much rather them look at hunter bugs that limit functionality before getting too worked up about a “bug” that ADDS functionality for people who know the ins and outs of the game API, even if unintended.
Still it is true, it is clearly unintended, though not really an exploit in the sense it isn’t duping items in your bank or giving you any sort of advantage.
Sometimes bugs offer beneficial functionality, those are called exploits. They are bugs nonetheless, this one in particular bypasses designed functionality.