Does it really prove your point? What you said you'd find helpful is a "global database of opinions" whereas being down-voted on this particular site is a very

Does it really prove your point? What you said you'd find helpful is a "global database of opinions" whereas being down-voted on this particular site is a very limited context. Would you find it helpful if I happened to be in the key interviewer for a job that you really want and are fully qualified for and reject you based on my perception of you here, bubbling up through data processing and aggregation into a "global" system that's totally opaque to you? And further, that my negative reaction adds more data and pushes your score down? Up/Down voting comments here is totally appropriate as limited to this context. Applying that type of data, invisibly aggregated across all aspects of your life is what's seen as a problem, correctly in my view.