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 no 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/...
and click on 'Save this url in the Wayback Machine'. 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.