Please remove dislike, angry and sad, then test how it works out. It will cause problems as a lot of people are aware of. It will chase people off too. The angry and sad one also set the one who posted them for getting criticized. Probably get rid of the love one too, which I don't have a problem with, but that will bring up a discussion that
ILUXA brought up about a senseless rule that got a thread closed last year. Unless that one is wanted to subtly make a case against that rule, which I'm ok with too, but can draw attention to controversy.
Including the negative reactions is also making it difficult to get two separate responses for like and thanks, which are still very distinct. It would be better if they got two separate buttons, if possible.
Like can get rid of the +1 posts, which are redundant and different than thanks, you helped me with my OS, or you said something that is essential to improve the forum. I see someone write something creative, but it doesn't help with the forum or not potentially in computing, it deserves a like (I noticed that, it's good), not a thanks. Some threads are chatter, and like is more appropriate there. There's not as many responses on threads that teach something new or better as there are on threads that are chatter, which are ok, but they are what do you like. A screenshot that shows a new feature can be considered chatter, but that often deserves a thanks. I like the funny one, but how often will it be used.