I've never really had a set nickname, always something different for different groups of people and often that only lasts for a couple months. I don't have any online accounts with the same name, except my old YT account that I never used and my SoundCloud QuiteDefinitelyMaybe (I tried to use it here but it was too many characters so I shortened it to Definitely). For nicknames I've had Wookie, Wooksauce, Walkie Talkie, Dickey (after R.A. Dickey for my knuckleball in baseball), McChucklenuts (don't even ask....) and a few that lasted for about a week at a time...although my mom has called me Fred since I was about three (and my name's Vance...)