Do you want to build a community where users search or hang? (2021)

This is such a misunderstanding of what "community" means through the lens of technology. These tools are not designed to help people have relationships, and the Google vs. Facebook distinction is quite apt in that both are scale-oriented and relationships are in service of the ends of the business. We're using the word "community" to obfuscate the weird way the technology and its owners attempt to mediate relationships.

I don't think you can "build" a community. I think you can only serve them. Perhaps they haven't been served that well before and your service will foster their growth. You still didn't "build" anything.