What was the stupidest PPT theory that you ever heard?

Please don’t mention “Huggy is 1006” one. It existed due to the lack of information.

Though, mentioning something like “Stella is Poppy” is okay, cuz some people believed it till the chapter 4 and needed for someone to say that they were wrong directly to their face to understand that this was dumb.

(Basically, mention the ones that were dumb even when they started to exist)