The best bad movies are fueled by someone who thinks theyre making something amazing as well.

That is exactly why The Room is considered to be the best bad movie of all time. It wasn't made by a hack just throwing something together for a quick buck, nor was it someone trying to make a bad movie, but they have to be a bit too self aware. It was genuinely a passion piece made by a guy who only has a vague idea how filmmaking works.