I have thought about it before, and I find it a little weird.
Even at uni, where my professors prefer I call them by their first names, I can't do it. I can just see my mother glaring at me if I even think about it. So I put abbreviations before their names i.e. I call one of my professors 'Doc Bill'. He seems to get a kick out of it too.
But the internet is a different medium, one with its own set of rules and guidlines. I'm glad for it, in a way, because I've made some friends who I never would have made otherwise. Nothing wrong with bridging the age gap
