[belorn]

You are talking about the definition of harassment so lets explore that with a few examples:

Is it harassment to treat someone badly because they voted for the wrong political party?

Is it harassment to treat someone badly because they voiced a political opinion with someone else?

Is it harassment to treat someone badly because something they did in private with someone else?

Is it harassment to treat someone badly because they have membership in an other group?

Those are some of the issues that people have with code of conducts.