Any Pot shop discount event going on?

Right, but this all well within the limits of the game, it's the equivalent of reselling your pots, just on a mass scale, I made a few mill off of it, if nothing else free NX for the rollback.

It's not a hack, but it's a glitch abuse. i.e., using something in the game which obviously isn't meant to work that way, for your benefit. The same as poisoning BigFoot, way back when.