I think we also have to consider cases where the Pittee is confronted with things other than dishonesty, and those things cannot be addressed elsewhere. For example - racism. We can say that a statement appears racist, but we cannot tell a poster that they appear racist. Other examples might be treatment of other posters, or fixation on something that other posters are tired of hearing about or want to address more forthrightly than they can do elsewhere.
Without a big revision of policies, I don’t see a good way around allowing Pitting of posters. Frankly, if we do revise policies to allow forthright discussions in all forums, wouldn’t all forums become the Pit?