'Vladmir' is an oft-used RPG name on my part. He was my first TES: Arena character (A Nord barbarian), and when I started playing a text-based RPG a couple years later, I used the name again. Since I played the game, off and on, for about eight years that incarnation of the character became one of my RPG 'hall of fame' characters and versions of him have appeared on everything from Knights of the Old Republic to Sid Meier's Pirates. Thanks to his wanderlust and a tendency to have bizarre things happen to him, several other players have said they think all the 'versions' are in fact, the same person, and he unconsciously hops times and dimensions just to find the next cool thing to do.
Thanks to the extended amount of time I played that game, I've also ended up with more people who know me as 'Vladmir' or 'Vlad' than as 'Larry', and thus, Vladmir is my usual web identity. When used in a nautical or military themed environment, such as this one, I often attach 'Captain' to the front, and thus, my user name. In such cases, I almost always shorten the name to 'Vlad', as it sounds more piratical.