1. It comes from my full name initialized and somewhat flipped, I guess. WL being my first and middle name, Ashley being my last name, and 3 being at the end of it.
2. I've been using it for 8 years now, ever since I was 10. Though, I sometimes use "Ash3wl" to avoid confusion over my gender.
3. I made it when I was making my first ever email.
4. Nope, not even once. ;D