Social media can work in many ways. While I think there are a time and place for a downvote I'm not sure I would have used it there. However, I avoid much of this by staying out of it. I upvote what I like, comment on what I like and typically don't flag unless someone is straight up stealing content. What other find valuable, funny, useful, etc may not be the same for me. Thus, I let the people decide what is useful and I don't think so I just stay away.