These seem to measure project popularity more than anything else. Of big projects. Of which you can choose among several similar ones.

The success of a OSS project lies in the hands of the user. There are projects done by a single developer over a decade, with zero contributors and with rare commits (or god forbid -- no repository!). In a niche which is too technical for a casual contributor, yet it does exactly what you need.

This is still 100% success to me, and represents what OSS is all about.

Big OSS projects backed by companies are a different breed of commercial endeavor.