Take into account posts not just profile

Unfortunately, it looks like lots of people's profiles include insufficient information to know they are part of a community e.g.
e.g. 
https://bsky.app/profile/swyx.io
https://bsky.app/profile/howard.fm

So next step might be to look at their posts.

We could grab 10-20 recent posts and ask an LLM if any of them are about a topic. 