[acdha]

I think it's more that formatting discussion is _easy_: if you get a merge request, you can start adding comments like “this should be indented differently” or “wrap this here” and spend a lot of time “reviewing” the request without noticing that you missed an error in the logic because you were focused on the most visibly upsetting problem.

Using an automatic formatter also can help reduce diff noise, which is something I've noticed on more active projects. Using Black drives close to zero the amount of time I spend confirming that someone didn't actually change functionality along with formatting. There are other ways to get this, of course, but it's so easy just to enable Black and never spend your time on it again.

> Parentheses placement is dicated by how long words are and not by what logically belongs together, etc..

This is actually a bit more subtle: Black will remove parentheses when they don't have any effect (e.g. `(32)` will become `3 2` because it covers the entire expression) but if you use them for only a subset of the expression they'll be preserved (e.g. `(1(32))` becomes `1 * (3 * 2)`.