The issue with social media is that online communities always coalesce into echo chambers, especially with the advent of catered ads. It becomes difficult to maintain an open perspective when everyone agrees with you; your online communities tend to affirm what you already believe which in turn makes you believe that your beliefs are "right". Nowadays everyone believes they're right on social media, it's becoming increasingly rare to find educational, informative, and civil discussions online. CGP Grey has an excellent video on the echo chamber effect: https://www.youtube.com/watch?v=rE3j_RHkqJc