It's not stupid if it works

I believe so

Yes, yes it is.

When you want it to look good, but can't be bothered to spend time and money.

Look good for what?

Aesthetic reasons. Also so people don't realize the place is held together by glue and tape

No, I mean, like in what situation? Without the actual screws, wouldn't the drywall just fall down? When would this be used?

literally the only situation I can think of where this makes sense.