The Foundation is generally very good, but I'd just like some formal restrictions in place (and more accountability to the community).
The board of trustees can't reasonably be expected to be restricted by what they can or cannot do (except by law) in the interest of the charity. The members by law have to put the charity interest first and foremost, even if it means possibly going against the wises / view of the wider membership. The membership can of course decide to remove the board / member(s) though.
The WMF has no membership.