Right now, Bluesky has one large community, which is already great for some people but not most people. Once Bluesky adds Communities, new communities can form, making it interesting to the other 90% of people who were excited initially and then turned off by it being "one note".
If you'd like to crawl the network to get real data, I built this a while ago https://github.com/verdverm/atmunge (it will take a few days to get sufficient data to do analysis, due to rate-limits)