Wut? We only need 1 roundstone but 3 botanist mats?

[Silverbane]

But how do you prove that someone is intentionally exploiting a bug though?

I expect it goes like this:

SE employee: Hey, manager, I reviewed transactions on those price-glitched mats, and here are the sales by player. What should I do?
SE manager: Let me see .. group 1 seems to be just buying as much as usual based on their pre-glitch buying, group 2 did not buy that much more, but group 3 bought way more and, looking at MB sales, sold it at fire-sale prices. Warn the second group, ban the third.

Now is it a bug, or are those mats priced as intended? No one but SE knows, so take your chances. Me, I'm just going to do what I have been: buying what I need when I need it. That's not as safe as not buying these mats at all, but it should be safe enough IMO.

After all, SE doesn't really need to prove you exploited a bug. They just need to believe you did.