I admit bots may not be as widespread. But watching someone make perfectly straight lines from mining node to mining node, mine, take off immediately, straight line to another node, land, mine, immediately take off and straight line to another node... and do that literally until their Diadem duty timer runs out? I'm gonna suspect a bot.

Crafting was easier; I doubt bots were common there. But gathering? Just from personal observation in the Diadem, you will have to go to some length to convince me the people who ground the Diadem through their entire instance timer without stopping or deviating once from their flight path were doing it all by hand.