Yes, we all need to contribute to a wider variety of content. I post a lot about books and travel, some sports and other stuff. I have created a LeoBooks and a LeoTravel community, do a daily travel threadcast and have done many book threadcasts too (with varying interest).
More people need to participate when people set these things up, plus more need to step up and do so themselves for their topics of interest. There's also food, photography and all sorts that I've seen content on, it's just the crypto/finance stuff is still what gets posted about the most as that's just the nature of where we are. It's up to us all to drive the future.
Please do share your interests and jump in when you see anything else you like!