Thought many people knew there was an exploit? After how many +1 Wyrm Ash crafts were coming out for so cheap and people shitting out +2 necks and Su5s for as low as 80m. Surprised people never asked some questions sooner.
People who duped medals still have thousands of them hoarded, for those who were smart enough. So exploit or not, most of the smart crafters aren't effected anyway.
Pretty sure this exploit has been around for quite some time. Even before the wearing torques in every slot came about. I have a feeling it has something to do with mog gardens. I noticed it right when Stikini rings came out because some character with the word 'kitty' or something along those lines was mass-selling them and word got around that he was able to see if he was getting HQ or not, interrupting it and only losing his crystal. I won't lie, I've asked about it before out of curiousity but no one ever said a word, and I understand why.