I “voted” last year:
Based on my understanding of what I’ve read about Discourse, that’s kind of the motivation behind the base platform having only the 
: It’s a means toward promoting positive community engagement.
On the other hand, I favor the 
on platforms like YouTube and wish that they’d make the count publicly available again by default, because I think that’s a useful metric to help someone decide whether or not a video is worth watching (particularly when I’m looking for how-to content; I’d rather not waste my time—I do enough of that already!—and seeing a high negative-to-positive ratio on a video can help eliminate useless content from my search).
In the case of the Forum, though, I just choose my own engagement. Sometimes that means responding with an image of my own choosing, without being constrained to some predetermined set of “reactions”.