It’s forbidden.
Think if it as a message board with moderator type persons. I, personally, might feel like someone is a piece of excreted excrement. But, I can’t go around saying “Mr. Weo (for example) is a piece of excreted excrement” as a reply to your posts.
If I did that, those moderator types would swoop in and banish me to the @Gugny place. I don’t like that place so I (try to) perform self moderation.
In the Reid instance the normal course would be for the owner (moderator in my example) to fire the schlep for going outside of what is generally accepted behavior. Since he’s the owner, he skates.