Thanks, @bilbop...
As I've responded to @steempowerpics, I would certainly not object to such a log... but the blockchain itself is a perpetual log of all changes. All I see really needed is access to a review utility.
What I would definitely want to avoid at all costs is any further delay in allowing edit access by piling on additional requirements at the outset. Such a log, or utility, is desirable, but should NOT delay giving us editability.