PMs have been an area of concern for a while, and the Merf post was just what prompted Gabe to take a look them to see how bad the situation was. Whereupon it was clear they were being abused by a significant number of users, and the facility was removed.
Unless you'd like to tell me what actually happened that I'm unaware of?
Or are you arguing that actually, people should be able to use PMs in order to circumvent the rules of the forum? Because that's the only way I can see your post making any kind of sense.