Perhaps we can make a small sass "normalize namespace" boilerplate that accept a namespace as var and outputs a normalizer completely namespaced.

As for base rules (body etc) I think we can "spend" the resources required to tie those with some class or id, even if it's not the preferred option -> body.namespace

I am fine with merging this in and keeping this in mind as a future iteration if that's what you would like to do for now?