Because crafting macros exist, its verrrrry easy for someone to mistakenly point out a crafter as some kind of bot. When I'm mass crafting things I'll sit there while watching a TV show tapping my macro once per synth and letting it roll through. So threatening to report someone for crafting and not giving a crap about whatever you happen to be saying to them is hardly a good thing to do.

On the other hand, on Behemoth in Gridania now and then you'll see a bunch of identical gibberish named black mages waiting for queue. Last time i saw a group there were 13 of them at the same time, all of them queued for duty finder. They would randomly dissapear/reappear as their dungeon queues popped etc.

I fear for any group that got stuck in a party with them.

That kind of operation makes it very obvious that they are in fact bots, no chance a player is behind any of that.