I noticed on one of my questions there were 3 close votes before (a week or so before), and today when I looked at it the number had changed to 1. What does this mean?
Close votes expire after a while. I think this post is the current canonical source on how exactly that works:
Close votes (and probably reopen votes) only expire after all of these conditions are met:
- 4 days have passed since the last close vote.
- The question has more than 100 views.