Maybe I'm missing something, but how would this
procedure handle the
situation where other users also would have identically named sub-pages.
It is certainly reasonable to expect that many of our busier users
would have sub-pages named "/archive 1", "/archive 2", "/archive
3", etc.
When you create a subpage by typing [[/archive1]], the actual page created
is [[<current page name>/archive1]], e.g.
[[Talk:Benevolent dictator/archive1]]. On this page, a backlink
automatically points to [[Talk:Benevolent dictator]]. Thus, you do not get
duplicate page names.
Regards,
Erik