Many moons ago (before the internet) my friends would call me a "computer wizard".
The most famous wizards I could think of were Melrin and Gandolf. I picked Merlin because I was a fan of the Authorian Legends.
The #* at the end of my name 91/97 are for my Bonnies.... a 1991 SSE and a 1997 SSEi.
also my LPs are "MERLIN1" for my 97, and "91 SSE" for my 91.