It's pretty lame that they closed this question just because it doesn't fit the Stack Overflow model and doesn't have a right answer.
Part of a moderator's job is to use judgment and ignore rules when it makes sense to do so. This is a great thread, and closing it (even after 600 posts) seems like a bad decision.
It is closed mainly because with 600+ answers, people weren't checking for duplicate quotes anymore. Keeping it open wouldn't really serve any purpose at this point.
(At least, that's what I would think. I've only been on the job for two days.)
Part of a moderator's job is to use judgment and ignore rules when it makes sense to do so. This is a great thread, and closing it (even after 600 posts) seems like a bad decision.