Used to design wargames ~20 years ago; one campaign I made for Panzer General 2, "The Great Patriotic War" depicting the Soviet side using Russian, Polish, Romanian, and other sources, was recently added to a browser game from somebody in Czechia.
On the forums, I decided to call myself "dragoner" because it sounded cool, my great grandfather was a captain of dragoons in the old Austro-Hungarian Empire, and it means "dragoon" in German.
My username is an inside joke of sorts which arose as a result of linguistic tomfoolery amongst my comrades. The name "Abeir-Toril" was consistently pronounced as both ABE-er-TOR-ill and A-beer-TOR-ill, to the great annoyance of the DM, the group, and everyone. While this argument raged online and in person, I jokingly uttered something that sounded like ABBER-TOR-ill. The letter AE was chosen, and the name stuck.
There's either another thread about this here or on another message board I've visited - because I'm sure I've answered this before but I don't seem to be in this thread.
Anyway, my real name is Bill and my last name starts with D. And since that's a reeeeeeeeeeeel common combination in lots of places and I was tired of having to come up with unique names everywhere, I appended a number meaningful to me (graduated from college in 1991) and that was less likely to be duplicated.
Shroompunk is my life's work, both trying to reinvigorate higher-level cosmic play in the OSR, and a meta-setting that's designed to feature and emphasize that playstyle by marrying good old fashioned Appendix N blood and thunder with Super Mario Bros and Masters of the Universe.
Warlord is to differentiate me from the other Shroompunk, who seems like a pretty cool artist but isn't related to my work at all.
PS: Bonus...I often use "Plum" and "Plum_Fun". Basically, my initials but 'spoken as a word'; "PLM"...say it out and it sounds like "Plum". And Plums are purple; I like the colour purple. I also use "Denakahn" on some other forums...my highest level PC ever, a 20th level 1e Magic-User grey elf.