You don't. For me, it's for friends and organisations and parties
So no one uses it for wider communities and meeting new people?
A lot of people do actually. Lots of open source projects mention a dedicated matrix room/space on their project page for example. Regarding discovery: Can we presume you have used the 'Explore rooms' functionality of your matrix client? (Element has this).
I just ask random people in matrix, "Hey, do you have rooms that you recommend?" works for me
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