this is an amazing theory. however i've always headcannoned black as "the big bad" he is such an obscure character and has little to no lore in the original mod. (which is kinda the reason i'm pissed that people treated nyanko the way they did.) cause i'm sure as more updates came out we probably would've gotten more lore on things like why in horror mode mr tree has a missing poster of what looks like a young girl (referencing the original mod), or why black changes the whole world to horror mode when you place him. or what the hell even caused wenda to go batshit crazy and kill half the sprunki's.