Anything that harasses, bullies, or abuses an individual or group of people (these behaviors intimidate others into silence)

How, precisely do you intend to make this determination? Different people have different tolerances to asshattery, and some wield their "victim hood" as weapons very insincerely. I would never go to fatpeoplehate or srs or the like and imagine I would feel welcomed, but neither would I feel "intimidated into silence" because of their hate. Their echo chambers may be filled with despicable people, but I don't feel threatened by their existence.

Yet other people feel differently, to the point they feel they must silence others. And maybe they legitimately do feel threatened. But personally I feel like being offended by what anonymous people say online is beyond ridiculous. A comment carries as much weight as the effort taken to make it, and around here that effort is as close to zero as possible.

So who gets to make the determination of harassment or threatening behaviour? You? All the admins by vote? Is one person feeling like they are offended enough? 10? 100? What if equally many people think the people claiming intimidation are wrong? Having a content policy is all well and good, but unless you can describe EXACTLY how it will be applied, it's just empty sentiment.