> Think about how much it would actually cost to run a social media website that competes with the big social media on the core product of sharing and communicating with friends.

It would cost tons man. You don't understand the scale these apps operate on at all. Meta has their own data center footprint that rivals AWS or any other cloud company and they had that before AI, and it's not just all to run ads on. On demand photo and video streaming and storage for free for all of humanity is incredibly expensive.

Social media with only millions of users is basically worthless because it won't capture enough of an average person's circle to be useful to them