I noticed something today on Software Engineering when dealing with an autogenerated moderator flag regarding "More than 10 answers posted to this question in the past 7 days". Mainly - this flag isn't helpful. Sometimes, it raises a question with a lot of answers where a good chunk of those answers are very low quality and can be deleted. However, often, I end up just dismissing this flag. So I'd like to see some general quality-of-life improvements related to how many answers a question gets.
First, I'd like to see some kind of prompt before this flag can possibly be raised. At some point, the answer box for the question goes away and is replaced by a button that says "Answer This Question". Clicking on this button brings up a prompt (and not a very pretty one) that indicates that a question already has a lot of answers and that new answers should add value to readers. This should happen before the moderator flag is raised. If 10 answers in 7 days causes a flag, the prompt should start appearing before 10 answers are posted.
Second, raise moderator flags only when it's likely answers are low quality. Some examples would be: a large number of answers with several negatively scored, a number of community-deleted answers, answers that keep getting posted even with the prompt in place, lots of answers in a very short timespan (hopefully the prompt slows this down).
Something else to consider - it would be nice if all of these thresholds were able to be configured on a per-site basis. I think we can come up with some good numbers that work very well across the board, but some communities may need some tweaks.
I don't know fully what this would look like, but ideally, it should inform users of what the expected behavior is (adding only new and relevant content) and not adding unnecessary moderator flags to the queue. Perhaps even a review queue can be leveraged to put questions like this before the community and votes (down votes, delete votes, etc) can trigger one of the other moderator flags I mentioned above.