About the only way to explain Reddit is to give you what others say because i don’t hang out there. I CAN tell you there are some rabid Trump supporters in the Trump ‘subreddit.’ The typical demographic is young male.
https://en.wikipedia.org/wiki/Reddit
https://www.youtube.com/watch?v=tlI022aUWQQ (What is Reddit?)
http://mashable.com/2012/06/06/reddit-for-beginners/#0NzhNsHtbiq2
I don't do FB nor Twitter, but at least I know what those things are. LOL