The groups listed as example (notice the "etc.") are up to the admins, I'm suggesting mostly how to word it. It's easy to include/exclude one if they so desire.

That said, I do think that "religious affiliation or lack of" should be included. It might boil down to opinions + a bunch of epistemic statements, but it's consistently a source of persecution.

If your wording is adopted, it’d be nice to see the difference between attacking who someone is and an opinion someone holds made clear.

Personally I believe that this is usually easy - you look at the target of the claim. For example:

• "[religion] is full of bullshit" - probably attacking the opinions or epistemic claims, thus probably fine
• "[religion] is full of arseholes" - unless contextualised otherwise, probably attacking the individuals there, thus probably not fine

This is also up to the admins here though, not me.

Also needs to reference (dis)ability IMO.

I understand where you're coming from with this, but note that complains about ableism, in social media, are often shielding abled people against criticism, not disabled people from prejudice. Stuff like:

• [Alice] Bob! You're being a moron. Don't do this.
• [Bob] Alice dis is ableism!