I've been pming back and forth a user on here a few times but other than that I only use it to contact ladies or established guys on the forum who have reviewed a lady I'm thinking about seeing so I can suss out the area they are staying and work out a time I could poss meet up when I take traveling time etc out. Contacted a mod maybe once or twce.
If the lady is a forum user I usually pm to say thanks for seeing me but apart from that, that's really all I use it for.