I've seen some gil farming FCs last for well over a month before they finally got purged (Despite me reporting them), so their response time isn't exactly the greatest.

As far as the "normal" bots go, it honestly seems like the only way they can get banned for it is if they specifically talk about botting in a chat channel before/after they've been reported for it. There's probably close to 20 or so of these bots on Cactaur alone (Not necessarily active simultaneously), so they seriously need to step it up.