The text of Straight Dope answers appeared in print and on Usenet and is copyright to the date of writing | first publication.
The existing text archives would have been ported forward with their original copyright dates some time post 1989 (when Tim Berners-Lee created his WWW specification) likely at least three or four years on as the practice had to spread outside of CERN, outside of the physics community, and early Mosaic browsers to become popular.
So it is republished and hosted as a website now?
this web page / site / post must have appeared on WWW much later in that case?
Was originally wondering if this web page is itself published in 1986 (styling /css updates may have come later)