Earlier quoted context omitted.
A note on locking: Locking prevents edits and comments on an individual post. The reason for locking a post is nearly always spam edits/comments. Locks are finite in time. Questions that rank highly for popular search queries receive a lot of traffic, and locking is often necessary to prevent vandalism. On question closure, this is rarely done by moderators (users with a diamond ♦ after their name), but by 5 votes fr…
I'm curious about the five vote threshold. Has it been fixed throughout the history of the site? Is it still appropriate given the degree to which the site's popularity and traffic has grown?
That's just begging for abuse.