>>Why should I spend my energy to discuss with someone who doesn't want to listen

One of the reasons why I stopped going on Facebook, even though a lot of communities I care about have moved there. I wrote a long comment about someone's suggestion about car maintenance, only to get a reply "I didn't come here to discuss this, if you don't like what I said then go somewhere else". Like, WHY EVEN BE IN A PUBLIC FORUM THEN. But I feel like that's just me and my early internet sensibilities. Nowadays people want to post something, get some likes, and not be challenged. Even a mild disagreement is met with immediate aggression a lot of the time, because people are just not used to talking on the internet at all(imho).