Wiki is an editor. It need not figure out what others have done. It needs only to remember what it has done. That makes reconstructing history easy.
One can edit an item in place.
One can move an item to a new place.
One can copy another's page to be ones own.
A page has a list of items (the story) and a list of actions (the journal) that created the story.
A reader sees the journal at the bottom of every page. Each action is a link to that edit's revision.
As pages are copied from site to site those sites are remembered in the journal.
A reader's neighborhood grows from the journal of every page visited.