Perhaps my earliest username did not even specifically relate to the internet. Back when you could still get a daily newspaper thicker than a couple of Kleenex, our regional paper had a section called Bulletin Board. I styled myself "Bab's Trophy Husband". Not because spouse is named Barbara or anything close to it. No, I think I was inspired by the dedication to Don Marquis' classic "Archy and Mehetibel".
"To Babs. With Babs knows what and Babs knows why."
I don't know quite what it means, but for the record Marquis' wife was not named Barbara either.