thiagovscoelho: Reddit has people voting the posts up and down, and ranks the posts by number of votes, so discussion won't arise very much since unpopular opinions will be downvoted until the post is very far down the page and even hidden. And your amount of votes amounts to a "karma" score that you have that decides how much you can post and other stuff, so you really don't want to get voted down.
So everyone gets divided into communities and only says in those communities the opinion that that community likes. It ends up being sort of just as bad.
jefequeso: Hmm... that sounds pretty bad, yeah.
I don't use any "social media", and don't really consider Reddit to be a part of that group. It's more like the largest forum on the web. And while the things described in the quote do happen, they happen mostly where there's a huge concentration of people - subreddits with millions of subscribers. So here's what you do: you ignore all of that default shit. Instead you find subreddits that you're actually interested in: there's plenty of small(er), non-toxic, well-moderated communities over there. There's exceptions to this rule: I wouldn't suggest you spend time in various fighting game subreddits, for example, but that's not due to Reddit, it's due to how they're everywhere.
Since I seem to recall you're an indie game developer, you'll probably be interested in /r/indiegames (and /r/indiegaming) and /r/gamedev and various other gamedev subreddits, all of which are fairly clean and pleasant. On the other hand, if you want to die a little inside, visit /r/gaming - it's about as you'd expect from a subreddit with over seven million subscribers. It's basically the difference between GOG and Steam - one is (relatively) small and mostly nice, the other is huge and mostly a cesspool.
tl;dr Avoid people.