I posted this in another thread, but I think it's worth copying here:
That's why I keep saying that forums like this are better off with just a +1 button and no others. It's also simpler, I mean, we've got separate buttons for +1, upvote, thank you, and haha. But if you think about it, a single +1 or like button is enough to cover all four of those - it just says 'I liked that'. Keep it simple, stupid. Meanwhile, what good does having negative reactions like an eyeroll do, really? To me, it's little more than a passive-aggressive source of tension and drama - it's not like we need more of that. Plus it also leads to 'what did I do to deserve that?' moments like the case you mentioned.