I am not actually 100% sure how the whole process is made. But an answer appear in the Low Quality Posts queue, and the reviewer can choose between
- Looks OK
- Recommend Deletion
I'm not sure how the queue is populated. The help says it is populated from the system. This answer states that it comes from the post being flagged, and typically having a 0 or lower score.
Most often, the posts appearing in the queue are from new users.
Sometimes I noticed that the answer wasn't posted more than 20 minutes previously. More often than not, there is no comment on the post indicating what is wrong. Or if there's one, it was too shortly before, that we cannot expect the OP to react on it.
Let us exclude false positive, and obvious cases of spams, rudeness, etc. But limit ourselves to what could be honest mistakes.
In those cases, I often have the dilemma that
- I cannot say the answer looks OK, as it does not,
- I don't want to edit, as I am not sure what the OP meant to add/say/remove,
- Recommend deletion feels a bit too hammer-like on a new(ish) user.
So it would be nice to have an option like: recommend deletion as it is, but leave a chance to the user to actually makes some improvement.
As it is the whole process can be done in less than 30 minutes. And new users aren't usually camping on SE to see what comes out.