Page moves should be throttled to say 1 per minute for non-admin users, to
prevent page-move vandals from making rapid sequences of page moves which
overwhelm admin reactions to block the user involved, and (very painfully) move
the pages back and delete offensively-named or nonsense redirects created as a
side-effect. This limit should be applied on a per-IP-address basis, to prevent
the use of multiple sockpuppet accounts, or bots which automatically create
accounts. This will also ameliorate the problem of page moves as a DOS attack.