These are some good background stories!
Mine is part of my email address. I wanted to use my name, Nicole, when I was making a gmail account, but like all variations of my name were taken so I gave it a Spanish diminutive since I have Latina love in my heart. I tend to have the same couple usernames on all Internet things. I recently remembered a good one that I kinda wish I'd used, but whatever. Maybe one day when I'm feeling too feminized or something, haha.