I enjoy this feature myself. I only use it on occasion but it is nice if I want to say something in private to another poster I can do so. Sometimes I think things should remain private if it is directed at one person.I like the fact if I want to make a personal comment to one person I can and it does not have to be public.{just for the record the few times I do write to someone else it is usually to say something nice} The person getting a comment can chose if they want to read it or not, and it can be deleted.