You're openly informing everybody on a public forum — in step-by-step detail, even — how to rip Obsidian off, end of story. Justify it how you like, you're deliberately telling everybody how to steal from them while wringing your hands, pretending to want to help. Publicly announcing how to perform the exploit isn't going to get it shut down any faster, it just means Obsidian will now have to clean up — or take a hit on — a mess you knowingly and willingly just helped make bigger than it had to be.
The folks at Obsidian will either need to roll back any progress made since the patch, including gold earned and chests bought, specifically go through accounts and reclaim gold (and purchases) earned via the exploit while not touching legitimate earnings, or let it all go and take the hit on all the gold that has basically been stolen from them. You handing over a detailed plan to every would-be thief out there who had no clue about the exploit until you just told them only makes the developers' job that much harder.
If you were genuinely interested in helping, you'd already have sent every Obsidian member you can find on the forum a private message, and sent an email through to email@example.com instead of making excuses. If this forum is like any other, administrators/moderators can see edits made to posts, so there's no need to leave that information openly available unless you're actually trying to share it with everyone.
I'm not sure what twisted logic you used to come to the conclusion that openly telling everybody how to perform a major exploit would somehow be less harmful than just informing the developers themselves. I'd already reported your initial post for openly advertising the exploit in order to help get an admin's attention to note the issue and remove the post; at the time I'd also noted that your sharing of the info wasn't malicious, but with your bizarrely argumentative insistence on sharing your step-by-step guide to the exploit with everyone, I now rather think it was.