They are just exploiters and RMTers/or other “currency” traders worrying about the in-game items losing their “value”. If they trade in-game in a legit and fair way, they won’t lose any value.
I have been saying this since forever:
(Feel free to put a like in OP and post your opinion in-topic too).
And people have been doing it even before the game’s release. Actually, people been asking for it, better drop rates/ exp since OG D2, and Blizzard North did listen to them multiple times.