[meowface]

I don't think it should be. I think punches above a certain threshold of force shouldn't be permitted, regardless of whether they're aimed left, right, up, down, or diagonally. Also, who exactly is definitively judging these directions in each of these cases? What's the judgment criteria when two people reside among a distribution of different relative directions across multiple different parameters?

I think eliminating double standards in the enforcement of these policies is crucial for them to be effective and accepted by a community. You're just trading one set of implicit and explicit biases in for another, and many of the same issues start to bubble up. Yes, certainly not all of the same issues in the case of one group wielding more capability to carry out a threat than another group, but many of the important ones, especially when it comes to matters of epistemology and reasoning.