It's quite interesting on how and where did you get those usernames. And sometimes other guys out there has some catchy and quite funny PM signatures. Last time I was browsing out here in this forum I saw a legendary member here that has a very unique avatar lickin his own tits and i couldn't get over it. 
To be honest, I did not even think that the first thing on my mind was what I thought of. What difference does it make in principle what your nickname is, the main thing is your business.