So I've been observing Reddit for a while and I've noticed something.
Reddit is a place where people like to separate and organize their own communities with people who think the same way and like the same things. One post could get a hugely positive feedback in one subreddit and a hugely negative feedback in another. The feedback system allows to hide opinions that are against the "popular opinion" of the subreddit so less people are exposed to them. To surround yourself with people like you is a rather natural behavior but it is not very good and here is why:
If you start isolating yourself from information you don't like and you only surround yourself with information you like, well... you begin living in an information bubble and everything you do confirms your own beliefs, regardless of what they are. To remove informational bias you need to be exposed to both sides of the coin on all issues, and this doesn't happen.
I've noticed this issue affecting more and more places on the Internet and I think it's worthy of a discussion.