A subscriber in the members section.
How would someone know they are not a member when their name is on the members list? This is just an innocent question.
And surely, neither you nor anyone else would have seen that post after it was muted, but that doesn't mean I posted something random on a pointless topic without putting in any efforts.

You have your rules, that's fine, but how will a common user know that even though they are on the member list, they might not actually be a member?