Ah, that definitely scales down my objection, but it's still present in a similar form. At what point does one decide that a belief is ready for "sale"? If you have plenty of good reasons for believing something, then those are the arguments you want to field. I'm having trouble seeing what would convince me to go further and risk epistemic backwash, other than contrived scenarios designed to maximize certainty. In the worst-case scenario, you might steamroll right over a valid counter-argument, and miss a chance to be proven wrong under conditions of high confidence - one of the most valuable learning experiences I know of.

I guess what I'm looking for is a solid rebuttal to this advice from the Supreme Leader:

I have sometimes been approached by people who say "How do I convince people to wear green shoes? I don't know how to argue it," and I reply, "Ask yourself honestly whether you should wear green shoes; then make a list of which thoughts actually move you to decide one way or another; then figure out how to explain or argue them, recursing as necessary."