For a while we experimented with a bulletin-board discussion site
(running on phpBB) at http://boards.wikimedia.org/
This hasn't been
used since August as far as I can see.
A serious security vulnerability has been announced in phpBB recently;
rather than add to our maintenance burden for an unused site I'm taking
the boards offline. If there's a sudden demand for it, we could upgrade
it and put it back online.
-- brion vibber (brion @ pobox.com