I posted on a thread that asks for first names, and I still have a creeping paranioa that someone would somehow stalk me by my first name alone.
My Skype username is my first and last name. It was made when I was much younger, but I can't be bothered to make a new account since I have 50+ contacts.
As aresult, if you know my name, it means I trust you well enough.
I have people on my Skype list that I should probably delete due to inactivity, or because they are extremely creepy (if generous and kindhearted) people.