I think it's mainly because search engines so far have not had access to annotations, therefore the discovery had to rely primarily on what the consensus is fro

I think it's mainly because search engines so far have not had access to annotations, therefore the discovery had to rely primarily on what the consensus is from other properties (to a large extend property owners) about what's important as opposed to what other annotators think is important. So a new and relatively simple search engine could solve that problem.