This is true for me too. It's funny that we can now literally connect to thousands of people in social media, but through likes and short comments. Sometimes I get the impression that long threads of discussion is not encouraged, that it's polite to just keep it short and sweet (example, when Instagram introduced the "like comment" button, I sometimes find myself using it rather than thanking directly.)

So our connecting is more like lines crossing over briefly, but never more than that. Sometimes this is fun - because where else can you encounter other people different from you - and sometimes it's just a little sad.