> VCs explicitly use stars as sourcing signals

In my opinion, nothing could be more wrong. GitHub's own ratings are easily manipulated and measure not necessarily the quality of the project itself, but rather its Popularity. The problem is that popularity is rarely directly proportional to the quality of the project itself.

I'm building a product and I'm seeing what important is the distribution and comunication instead of the development it self.

Unfortunately, a project's popularity is often directly proportional to the communication "built" around it and inversely proportional to its actual quality. This isn't always the case, but it often is.

Moreover, adopting effective and objective project evaluation tools is quite expensive for VCs.