In a group where members are all anonymous and spread out. There is no paradigm to how do we really exact leadership among all, considering the fact that there is no solid tie/commitment to the group. Leadership here will never work. We all know most of us are just here because we've watched Durarara or we just want to read/write things of our interest.
Just as
>>3 said, hierarchy isnt solving anything, more proactive members will indeed provide the group a better structure. However, acquiring these members is easier said than done.