In theory if you sold an item, your account was rolled back to before the trade and the buyers account was not, then items would be duplicated.
And in theory the reverse is also true, if you buy an item from someone, and your account is rolled back but the sellers is not, then that item would be lost.
I don't see any reason why there is a higher probability of one of these outcomes happening over the other, so in these theoretical duplications and removals of items would cancel each other out.
If someone knew how this situation was going to play out and intentionally set it up so that the rares would be duplicated, then I guess it could be possible that there are now more rares in the game.
But as far as we're aware, this wasn't a planned attack/dupe attempt?
06-Mar-2021 15:37:42