How is that different from the parent-comment's point?

I mean, the parent-comment was saying that folks could get the last-word by replying-then-blocking. It sounds like folks on your platform could get the last-word by simply not approving the other-side's response.

To avoid one side getting a last-word in a feud, it'd seem like you'd need to ensure that both sides could eliminate the entire conversation should they not be satisfied with its ultimate conclusion, such that there'd be no last-words in any feuds as there wouldn't be any (published) feuds. Short of that, it'd seem like one party could end up getting in a last-word.