Most people have been posting their character in their signature. What I do is if I want to respond to someone, I can just pop their character thread open and glance over it quickly so I know who I'm talking to. I don't need the full details of their weapon or history since that information wouldn't really be known by the character generally, unless I know them already. Also, we are going to be having an initiation event here soon that will give everyone teams of 4 people, which will help out a lot.