Game Theory: FNAF, Don't Trust Gregory (FNAF Security Breach

Game Theory: FNAF, Don't Trust Gregory (FNAF Security Breach)

I've watched 4 playthroughs and played the game myself and not once did I notice disappearances mentioned, except for this one line. Did I miss something? When did Gregory learn about this?

The Security Breach Files – Why don't people think they are legitimate?

Who is Gregory in FNAF Security Breach?

SECURITY BREACH] FNAF SB GAME THEORY DON'T TRUST GREGORY REACTION!!

FNAF Fanfiction, Literature on FiveNightsAtFreddys - DeviantArt

Game Theory: FNAF, Don't Trust Gregory (FNAF Security Breach) By The Game Theorists

Security Breach reacts to game theory - Don't trust Gregory

Who is Gregory in FNAF Security Breach?