Michael Williams has a good quick post on the difference between anonymous and pseudonymous writing.
“Murdoc” is not my real name. I took the name from the character Murdoc Jern in the Andre Norton sci-fi series about the Zero Stone and also from the character in the A-Team (whose picture currently adorns my masthead) although his name is spelled Murdock. (Murdock liked planes and was clinically insane. For some reason, classmates in school thought that I reminded them of him, and my nickname was given to me.)
Murdoch is is also a common spelling for the name.
I use the pseudonym because I can maintain a certain amount of privacy for myself and also to shield family members from the shame that they would surely be subject to if my secret leaked.
(Remind me not to speak out about the whole yellowcake thing.)
I always ID myself as Murdoc when online unless dealing directly with personal friends or family, or if my true ID is needed for financial or other “official” reason.
I never use a different name when commenting on other sites, nor do I comment anonymously. I stand by what I say, and I don’t have a problem if others can see what I post. In fact, that’s a benefit to being consistent.
That’s all. Murdoc out.