You say that like this is the first movie that gained a following because it was so bad it overflowed to being good. But that’s a hard line to walk deliberately without drifting into satire territory (which is just making fun of something else by mimicking it) or self-parody (making fun of yourself), which are different because the makers are in on the joke. “So bad it’s good” only works when they aren’t in on the joke because part of the humour is that someone genuinely thought it was good. It *can" be faked, but it’s difficult since most makers want to be in on the joke rather than the butt of it and won’t be able to help giving little winks to the audience that ruin it. Or they don’t know how to be entertainingly bad and just make something that isn’t interesting.