In relation to all other (15+) SE sites that I'm active on, this one has a very large number of (follow-up, me-too) questions posted as an answer.
(I'm not proficient with SEDE, so I cannot give actual numbers).
I have no issue with flagging them as 'not an answer' when reviewing them, because that is a very quick action.
I'm also not afraid that this will put off new users. It is a clear signal to them - if they think their question is important, they will take the effort to write a new one.
Still, I wonder, would there be anything else we could do to reduce the noise?