Board Thread:Special Projects Division/@comment-4501923-20170424192505/@comment-4501923-20170424211157

That's one reason why I'm going back and watching through their Gmod videos, so I can see everything from beginning to end. For the fan-made things, we can mention in a "Behind the scenes" section or something about them being made canonical and source only the things made canonical. Retcons would be mentioned in videos as well, hence being sourced.