The common term is “communities” or “comms”, I think.

I would try to look for servers dedicated to the subject you’re interested in and see what communities they have. Keep in mind that there are much fewer users on Lemmy than Reddit, so there might not be a specialized community for a given subject. And if there is, it might be very small/inactive.

Not gonna lie, the first half of this headline made my heart skip a beat 😅

Seize the means of computation!

having to drive slower than reasonable

Honestly, this only exemplifies why speed limits by themselves don’t work. We have to design the streets so that the lower speed feels reasonable.

I know I’m probably preaching to the choir here, but it’s always worth saying.