Looks like because it got so many responses (or non-responses) and was a jokey satirical question to begin with. At least, that’s my guess. I think both the question, the responses and the archiving were done as a joke.
Maybe 1140 responses were simply enough. I know I tried like everything to get mine to stick, but of course they never did. It was like writing your best wit on the water, irresistible in its sheer hopelessness. Charley Brown and the football.
[mod says] That discussion was closed because the founders plan to write in the blog about it at some point. Once it was mentioned in the blog, it would become a target for mischief making by outside forces (new members who join only to post there).
There is no doubt in my mind that the CIA closed the thread because they got tired of tracking it regularly. @augustlan‘s story about a blog is a handy cover and merely serves to prove my point.