That's an amazing story.
I really like all the cultural oddities that Garry's Mod spawned. All of the indie animation. It was a big piece of machinima / virtual filmmaking / YouTube history and absolutely paved the way for VTubing and Unreal Engine in film.
Any idea if Facepunch or Valve retain rights to "Skibidi Toilet"?
Skibidi Toilet was made in Source Filmmaker.
The Hollywood development company that bought the rights to Skibidi and are developing it filed a DMCA strike against Garry's Mod. It got resolved, but no one involved is talking.