as someone who use too dual box ( 2 seperate machine) and a game pad user. i had to make lots of macros, alot using /assist and <f> and <ft>,

but i never attempted dual boxing inside the dungeons just because of the nature of the game ( one hand per controller doesnt mean 50% efficient each hand lol )

by doing so you kinda understood the behaviors of the characters that are running on macros ( built in game ). i que all kinds of classes, but like OP said, ive seen my share of tank/whm that had the behavior of dual boxing, and it didnt bothered me. Because on the course of the game i also think about how it was implemented. ( its kinda obvious when tank or whm doesnt dodge trash mobs aoe, likes spaming medica, sort of things ).

but anything more complex than macros built in game such as auto cure when any player drops to 80% hp. would defenetly fall against ToS. To OP and to any player, who discovers this, all we can do is make a report and leave it to the GMs to investigate this.

and to the perpatrator the OP found, man sound like a very flawed script. if i saw that, i would have done the same thing the OP did, just because the the perpatrator can't put a harrassment report against me when all you do is spout random action words in game. if he admits his dual boxing and other person is running a bot, well finish the dungeon first then file a report.