What rating value can be considered the "middle" of the rank?

[pokk97]

@spaceraven

Oh yea, that makes sense. Except it’s not just the kyu ranks that are confusing, I believe. For example, 0.5d is considered 1d. So dan ranks need to be 1-shifted as well, in the other direction.

(see my edit; dan ranks are already 1-shifted so that nobody is 0.5d)