The user would be able to point to a FOAF RDF source
(in RDF/XML, RDFa, maybe N3, Turtle, whatever) and
automatically import his user info from there.
There should then also be a button on the user’s
profile page to update his profile. Maybe it the forum
could also periodically scan the datasource (e.g. on
access of the user’s profile page, when the last check
was more than a week ago) and update it.
This would make it easier for users to maintain their
user information, he would only need to update his FOAF
profile hosted on his website (or elsewhere) and all
the Fuji forums he is frequenting would automatically
be updated.
Plus, it’s nice use of RDF :).
~Grauw