For me, I just don't think that a lot of new writers carry their ideas far enough. I think they come up with a premise....
Ohhhh, a teenager gets stuck in a living maze and they have to get out.
And then that is it. They don't push themselves, or the story, or the character to do any more than that... And then what are they left with? Something pretty bland and generic. Sure, sure, you can include monsters and danger and blood and guts and maybe a romance, but it will always be sort of shallow and straightforward.
Make it worse forces you to dig deep. That's why I force myself to think of ten things, then ten more. Forcing myself to do that up front makes me really mine the the potential of the story idea so instead of something generic I end up with something really new, full of themes, conflict, choices, etc.
I forget who told me never to settle for my first idea, but to keep pushing for the fourth or fifth, but they were right.
And... having read some of the thread, and some of Heliotrope's excellent posts in it, I'd say that to me:
"Make It Worse" is *wonderful* advice for writing scenes.
It has its flaws as a way of plotting though. But I think I misunderstood the original post entirely and no one was ever planning to do that.