A central registry can be done pretty politics free (the politics can be delegated to each "domain"). But presumably additions to any particular domain must be approved by a select set of people for each domain. Perhaps there could be a completely open domain (e.g. "chaos") where it's first come first serve for any names, maybe with a set of moderators clearing out crap or obvious name squatting every so often).

I could also see the role of a standards body accepting conventions as standards (of at least two types: mandatory for a given version of  finf or later, or optional)