It would be useful if that kind of questions would be saved/stored in Wayback Machine before they get removed, so they can be easily accessed for future reference, as not all of us have high enough reputation to see it and I'm finding that kind of posts interesting.
So before removing it, just go to: http://web.archive.org/https://serverfault.com/questions/... (copy&paste url) and click on 'Save this url in the Wayback Machine' and it'll save the URL immediately. It just takes few seconds. Maybe there is some way of automating it for all sites, but I don't know what you think about it.
For example I did the backup of the current page (just before posting these images):
And copy of it was done and available immediately at the following url:
UPDATE:
To archive the page manually, just go to:
http://web.archive.org/save/http://full_url
or just the curl:
curl -s http://web.archive.org/save/http://full_url | tail
