So a whille back ther was an announcment made about Fandom redoing a bunch of their groups and that that SGCommand was one of them or one of the first time has gone by and I had almost forgot about it untill I google a Stargate topic and this came up :
Hey. So that Wiki (stargate-sgc.fandom.com) is completely separate from our Stargate Wiki (stargate.fandom.com). It was created a few years ago by a user who disagreed with how we include information from novels, comics, and other officially-licensed sources. Basically, that Wiki only includes information from the tv series.
It looks similar to our Stargate wiki (Stargatefandom.com) only because the person who created it copied a bunch of our templates, images, formatting, etc.