If what you mean is along the lines of what firetil_madness said, then I don't think this is a good idea. Somebody could send a "secret" messege to a profile that is no longer in use, and spam it to get AP. Since regular members couldn't see the "secret" messeges, they would be hard to report.
There are too many unused profiles to lose them all. This has been suggested before and the best thing to do is to simply add people to AIM or MSN. If you do not have AIM or MSN then you and your buddy should download them.
But what if people are spying on you man.You never know what kind of people there are man.Don't you agree?
Are what people have to say really all that private anyway? Also, Juan, I've noticed you've been spamming the forums like crazy -- please refrain from apologzing if you triple posted and try to condense what you have to say in one post