The account creation process in the default [[plugins/passwordauth]] plugin
could support account moderation by an administrator.  New account signups
would go into a queue for approval by an administrator.

(Random, potentially infeasible idea: save their edits and apply them if
the account gets approved.)

[[plugins/passwordauth]] could also support an "account creation password", as
a simplistic anti-spam measure.  (Some wikis edited by a particular group use
an account creation password as an "ask an existing member to get an account"
system.)

--[[JoshTriplett]]

[[tag soc]]