Now that I finally joined the site I can put in my two cents on this one:
I've been reading the SCP site for years now, and this has always been one of my all-time favorite articles. What really clinches it for me is the extent to which the Foundation is portrayed going to keep everyone except its highest-clearance-level employees from learning the TRUTH about "Bigfoot," as well as the Document and Addenda at the end (which in and of themselves provide wonderful potential springboards for some Foundation Tales).
If I could give this one 999 upvotes, I would. Good job, TheDeadlyMoose!