This is a partial solution, but one that is already implemented. The problem is that people have different semantics for clicking "Like" on something, or givin

This is a partial solution, but one that is already implemented. The problem is that people have different semantics for clicking "Like" on something, or giving it five stars. This becomes problematic when giving something five stars means that it's at least "pretty good to you". In that case, you lose the dynamic range of expressing "this is AWESOME. simply AWESOME." So a machine learning algorithm cannot distinguish between good and AWESOME if the user is lumping them into one category. Which is why I propose actually creating scarcity around the amount in which you can promote or approve or content, perhaps backed by a currency of cool. I can only click like five times a day, for example. That would limit people's ability to blithely approve of everything, and their ability to collapse the distinction between good and AWESOME. This approach is much stricter than the optional "gentleman's agreement" proposed in the article, but might also create more desirable properties, and a fun incentive around only sharing AWESOME.