There are many other far more useful metrics to look at first, and to focus on first, and to think about. Every time you think about stars, you'll forget the other stuff, or discount it in favor of stars.
Forget stars. They now no longer mean anything. Even if they did before, they don't anymore.
In it they explicitly call it out as a ranking metric
> Many of GitHub's repository rankings depend on the number of stars a repository has. In addition, Explore GitHub shows popular repositories based on the number of stars they have.
Yet another case of metric -> target -> useless metric
e.g. "TFA covers this already."