Simon Widlake was the instigator of Compet-n, a website dedicated to Doom walkthroughs, achievements, and honorifics. An example of the sort of challenge found there would be determining who could run level 8 with no extra weapons and get to the end with all secrets, weapons, and maximum life and armor in the shortest time. As a speedrunner he submitted over 70 demos to Compet-n and Doom Speed Demo Archive between 1995 and 1999. Simon passed away in 2003.
Interests and memorial
Simon was also very interested in PC viruses and coined the phrase "Viruses infect - Worms infest", to help distinguish between the two. He took part in many forums, but few people could work out what the hell he was talking about half the time. :-)