You say username change as if I just changed my name. After looking a bit I assumed there is no way of changing only your username; I made a new profile.
I didn't like taking the name of another character not created by me to name one reason. It's unoriginal.
Also, "wandering baldman" originates from Adventure time, I didn't wanna give off those vibes just by the reading of my name. It seems rather childish and foolish. I am both of those things but people don't have to know that before actually conversing with me. 
This name kicks more ass anyway. 
(Kinda wanted to change name before future roleplay of mine... If it ends up great and there are many posts and a nickname is created for me I don't want it to be baldman.)
Comical and humorous cannot convert to serious too easily.
 But the other way around.... "As easy as your mom". 

Hope this answers your question. Well, how is life? Answer [i]lively[/i] someone... It'll be punny

Edit: In simpler terms, you can't get virtual vajayjay when your name is baldman. Joking obviously.