I wouldn’t call it hardcore necessarily. I’m on lemmy because I walked away from reddit when they shut down api access to third party apps. I haven’t had any other social media since I got rid of facebook in 2013 when Edward Snowden dropped his info. I just don’t want it, to be honest. Facebook was a little hard to give up because it was the only way I stayed in touch with some folks, but honestly the important relationships survived. And all the rest - instagram, tiktok, twitter, snapchat, et al - don’t really appeal to me. Especially short-form content, which I find extra annoying.