I think this happens because everyone does this in youtube and by habit people do it on other platforms.
But at the same time, clickbait works and that’s the problem basically. If a clickbait tittle gives you more views and you want to be relevant doing clickbait tittles will help to get to that goal.
Hopefully with time and less algorithms promoting this behavior we will have less clickbait stuff but I don’t think it will never disappear, specially when there’s a big industry behind.