Here's a suggestion using the old adage "praise in public and admonish in private," especially since the changes appear to be dramatically in another direction. When there is an offending post, the moderators could send a pm to the person pointing out the infraction and asking them to change the post. This allows the person to take ownership and responsibility for his actions. It also does not embarrass the person in public. When someone is called out in front of others, it can be embarrassing and it invokes a defensive response, which is likely to not be nice, and conflict ensues. I suspect part and parcel of the new moderation rules is to prevent conflict, so be a peacemaker when doing moderation and not a fight starter, handling it quietly, politely and adult like will likely get better results.