If you have any more comments or criticisms of my projects feel free to email me...
Done ;-)
A first wiki could be around your project. It can be made with existing tools (pandoc, github...) if the workflow is clear enough (even with manual parts).
For example, it's possible to gather some metrics of the usage of libraries from a running process (with strace, google perftools, source maps in javascript...).
It can be a process used by a real user or autotests from the project.
A software could monitor those probes and allow the user to reward the dependencies that: