Certainly doesn't sound like you're asking it in good faith, but I'll bite.
101 botters flooding a single zone, interacting with the zone in what ought to be invalid ways, a general degradation of the game experience in the immediate, and in the long-term, as another 101 million gil hits the RMT trader accounts, resulting in further spam and abuses of the system, the annoyance factor of interface and graphic, with bots blipping in and out and through world and zone while you're playing.
That and it's not very fun to be on a new server and have it feel like a ghost town run by bots. It's a lousy experience. You should try it sometime /s