I dont see "pretty clear guidelines". I see an attempt to regulate complex human behaviour in a one dimensional document. it does not consider culture, tradition and upbringing in different regions. a friendly comment in one culture could be seen as unwelcoming or even sexist in another.

the same with "Focusing on what is best for the community" .. there is no single "best" and no single "community". its a melting pot of cultures, countries and people. what benefits one might not benefit the others.

this CoC is just an attempt to regulate what you cant regulate. maybe just replace it with "dont be an idiot, respect others and assume good intentions".