Ranking (as in search) is a powerful application of a Swarm Sifting Sort.

All of the authentic actions of a massive swarm of users (linking, searching, clicking) can be summarized into an extremely useful and high quality ranking signal to benefit everyone.

It only works for declarative information, not code.

Code is dangerous, because it can do things.

Imagine how powerful it would be if we could rank running code, safely.