While I do think that smiles are good, I wouldn't intentionally hone a razor to put on a smile because... well there's no reason to intentionally wear down a razor. I'm not sure if my honing stroke would put a smile on a razor after an extended period of time because I've not honed any single razor that much.

If you look at vintage razors, a lot have heavy wear on the toes. Some smile, some frown, and some have straight edges that are tapered. I find all of them annoying to hone. The same can be said of razors that have hone wear into the bevel.