I highly doubt that 8x 100% perfectly optimized bots doing this trick would outperform 8x bots farming normally.
This is only ~75% of p1 drops even if 8 players are in game.
Read that again -> 8 bots working very hard to obtain only ~75% of the drops of a p1 game.
You have ~75% chance to get 1 item (and 4 pots) per 3 load time.
Yup, it's bad. Very bad.
Far from game breaking, you lose time if you do it.
And you don't get any xp, no chance at sunders/shards/statues/keys.
And the real price is your sanity (or loosing a lot of profit from your bots if you automate this).
only smart person in the room