@user21820 1) No. I usually think it is a bad idea to have any thread of the form "Why isn't X a proof of famous conjecture Y?" But I would hesitate to vote to close without thinking about it, since maybe there is some content there, and I am not going to waste my time reading it to check.
2) The question about Warren Buffett is not *obviously* about math, but there is good hidden content there, involving a misunderstanding of the right type of average. Certainly I think that the question, paired with the answers it received, is of value.