I was just writing a nice and long post to a question on meta. Just as I was finishing up, I saw the dreaded No more answers will be accepted banner appear. It was closed. So all that time was wasted drafting the answer due to the closure.
So I would suggest a notification when in the answer pane of new close votes when they happen. That way you can figure out if you're getting close. If you're a 250 rep user, show how many votes there are. If you're not, just show that the post is close to being closed, and to hurry up (perhaps at 4 close votes).
As it stands right now, it is a disincentive to write a good answer to a controversial or possibly duplicated post (which to newer members is hard to know).