[Coda]

I wasn't COMPLETELY spitballing; that's derived from an actual number. I queried 7-day-active user inventories and assumed that people who didn't have duplicates would be unwilling to trade their last copy, then I rounded it off. If those mules haven't been active then I wouldn't have counted them, so it's entirely possible that there might be a few more out there within reach, but I wouldn't imagine very many.

We do have admins generate freebie copies of items when they're given as prizes or as payments (item creators get to have the item they made) but that doesn't influence the overall numbers all that much. We avoid doing that ad-hoc.