FWIW, there's already an auto-kick for afking. The problem is just that bots are programmed to circumvent it.

I will say that while the mode is wholly unenjoyable to me now post-skill prune it does seem to have been well-received by the community, so for the most part I've just given up on it personally. Bots and win traders have been all over Feast since its inception and hardly anything is done about it because that requires actual manpower dedicated to it (which SE does not seem to want to commit).