There is a more-or-less comprehensive archive[1] up to 2019 (which should probably be scraped and hoarded). The article in question is there, comments included[2].
Side note: Michael Kaplan’s blog, which Microsoft took down in a remarkably shameful manner, has also been archived[3], while Eric Lippert reposted (most of?) his old articles on his personal WordPress instance[4].
It’s still there[1], although a number of the posts seem to be missing. Inexplicably, (most of) the comments are in place. (There are other Microsoft blogs that have disappeared without a trace, but not this one.)
Side note: Michael Kaplan’s blog, which Microsoft took down in a remarkably shameful manner, has also been archived[3], while Eric Lippert reposted (most of?) his old articles on his personal WordPress instance[4].
[1] http://bytepointer.com/resources/old_new_thing/index.htm
[2] http://bytepointer.com/resources/old_new_thing/20110921_226_...
[3] http://archives.miloush.net/michkap/archive/
[4] https://ericlippert.com/