I saw the angel in the marble and carved until I set him free.
Human memory is a marvelous but fallacious instrument. The memories which lie within us are not carved in stone not only do they tend to become erased as the years go by but often they change or even increase by incorporating extraneous features.
The basic problem is that web 2.0 tools are not supportive of democracy by design. They are tools designed to gather spy-agency-like data in a seductive way first and foremost but as a side effect they tend to provide software support for mob-like phenomena.