I've got plenty of friends now. Most are not the ones I met online; that was a phase of our life that has largely passed us by, though I keep up with a couple. I still comment on things, but it leads to more shallow relationships if any, but perhaps that's because I'm not really looking for friends anymore.
But I think that the bigger reason I'm reconsidering commenting online is: I can never be sure if the other person is real anymore. And even if they are, it often doesn't feel like they're debating in good faith. A lot of recent Reddit comment threads have really felt like I'm arguing with an AI or Russian troll farm. Social media now feels like a propaganda cesspool rather than something where people come together to share disparate views.