I've not seen reactions other than "like" available on other forums I or my family have used, aside for forums aimed at children. It's very peculiar to me, and is a negative of this site, in my opinion.
Some people here sadly "spam" the site with endless angry faces and dislikes, often with zero logic, perhaps just because they don't like the poster in question. Yes, I can block the posters engaging in such stupidity and it will prevent me seeing that so and so gave me 20 likes and 40 angry faces in my news feed, but that in itself is challenging at times because if they limit who can view their profile you have to search to find a post they made to be allowed to block them.