I'm an undergrad student in computer science and I come here regularly. Many of my friends do the same. Of course, that can't be extrapolated to students globally, but students who love what they do are not extinct!
HN is kind of the go-to platform. We also have a Discord server where we hang out and talk about stuff that may or may not be software-related. I know some of us are interested in getting accounts on lobste.rs, but we need to find someone to refer us. I keep forgetting to ask one of my professors.