Can we add reactions to posts/replies? Seems like this would eliminate a lot of needless back & forth where the only real purpose is to communicate a positive, neutral, or negative reaction to a post? Said data could also offer a gateway to sorting threads or replies within those threads not only by views/responses, but also by number of reactions / upvotes.
Edit, for clarity: reactions in addition to the upvote caret. Emoticon-style.