My two cents on this is:
any automatized decreasing of OR can be abused of and losing completely the sense of it, which is, in my own view, one of the MAIN differences of this kind of setting with others. There have been already several cases of "Ooooh I didn't know" which, out of compassion, have been fixed, but I seriously doubt it will happen again;
any non automatized decreasing of OR related to head/hair change means adding a routine more for a DM.
Thus I would say it MAY happen but on very occasional and rare circumstances depending from case to case.