I, too, agree that mods should not be inserting their opinions or other non-administrative comments appended to the bottom of other posters comments. They should only post personal opinions as a separate comment of their own.
And even then I think if it is only their opinion of a general matter under discussion, and not an administrative note, it would be more appropriate for them to post it under their non-mod username rather than relying on their moderator authority to post personal opinions on general issues. But even if they post it as a separate comment under their moderator login that would be a far better alternative than sticking their opinions attached to the body of other members’ comments.
We know, you’ve mentioned this before. Feel free to set those parameters on your own site 🙂 VhM”Y