FM;
As I understand it, the Hypothes.is project is an attempt to accelerate the “Darwinian” processes you speak of. Some aspects of how they intend to accomplish what they claim are their goals are obscure to me, but weighting of referee comments by the community and some kind of internal linking and ranking logic that filters trivia and nonsense seems to be implied.
We’ll see. What there won’t be is discretionary gate-keeping.