Add discord like reactions and additional filter functions for posts that received certain reactions.
i think that would require too much effort and you can already reply with a picture
because comments are for people who have time. psh :P
require to much effort to implement or to use? that should not be to hard to implement and if its done right its just two clicks. The cool thing with the reactions would be that you can see them in the stream without opening the thing up, because it takes so little space