This document is under CC0 aka equivalent of public domain. People may fork it at will so it will travel through space and time without a precise ownership and might blossom in thousand of branches.
You may fork, rewrite a poem, take a stroll and make a photo album with it, add a comment, it doesn't matter. At least a few branches or outcomes of this document might create something owned by our collective mind more than individual. Maybe it will die, it doesn't matter. It really depends on the desire of the people involved to make it alive.