I dont care. Im sadden by the senseless violence and loss of life but i dont care. Im not offended by what may be in poor taste jokes nor will i look down on does doing because i dont care enough to do it. It sucks. Sure its tragic but people die al the time from lack of food medicine or just general attention. So if someone cracks a clever joke about these terrible times im going to f**king laugh a share it. Life is a mess and its short so imma laugh because feeling bad and worrying whats around the corner is the norm now. And thats a tragedy.
I won't downvote unless it is like, for example, attacing another user or something like that. I probably won't upvote that kind of meme, but I do know some people (not saying any names here) that just troll.