> don't pretend that we can't have written down norms of decency because of the potential for abuse
I don't pretend that we can't have written norms of decency. But I know for sure that it's not the norms written in "Contributor's Covenant". It should be another covenant.
> You presumably wouldn't accept blanket "potential for abuse/harm" arguments in other contexts either.
A couple of month ago I made a teardown[0] of 17 pages long bill that was pushed in Ukraine and had a lot of abuse potential. It was (and is) my main concern. I see it as a major issue of laws, rules, covenants and other legal or semi-legal documents. You may not see it as big issue, but I do. I see this potential abused every single day by corrupt governments of Ukraine and other ex-USSR governments. Vague rulings as in previously mentioned "Contributor's Covenant" are used to prosecute people for stupid reasons and for personal profit by ones who have power.
> Fight the abusers
It's very unlikely that witchhunt victim will return to community. I'd rather have rules better written than someone expelled from the community because someone likes to abuse the power.
Fight the abusers, fight the bullies, but don't pretend that we can't have written down norms of decency because of the potential for abuse.
You presumably wouldn't accept blanket "potential for abuse/harm" arguments in other contexts either.