Why is this sub so depressing?

80% of the posts are stories of people getting screwed over one way or another. Yet, my master's experience, along with many others, was nothing like this. Some of the posts make me so angry to a point where I wouldn't know how I would deal with it if it were happened to me. You guys are awesome for putting up with all kinds of shits... just shows how resilient you are. But seriously, what's with all the negative posts? Are there no positive stories?