Well at some point he is right . Because of multiboxers , especially Druid once , profession got nerfed by far . They increased the amount required for one potion and other profitable consumables.
As well players can cover whole area like I was witnessing once. Whole are in twilight where water elemental spawn was covered by one player controlling 6 characters. During the quest to kill 10 of these elementals I got 6 elemental water , which costs on my server 50 gold, and sells like crazy .
I mean he was in war mode so it was easy to shut him down because i catches his characters outside attacking cycle so he didn’t move at all.
But when you look at the rules it’s not cheating , when you look what they do and how it affects the game , it is a little bit. And in pvp hehehe imagine 10 chaos bolts or 10 starsurges hit you at once