A portmanteau of "system operator," referring to someone who manages or moderates a multi-computer system, especially online forums and virtual communities. I've been working as the sysop on a weightlifting forum for the past two years.We've asked the sysop to block the IP address of anyone posting spam messages.
SYSOP
(ˈsɪsɑp)
n. system operator, the person who manages a computer system or forum or news group. The SYSOP tried to bring order to the news group discussion but failed.