@cody This actually makes me wonder how #kbin interacts with Mike Macgirvin's old #FederatedSocialWeb projects #Friendica and #Hubzilla and the more recent #Streams. For at least Friendica and Hubzilla (optionally) also have a dislike button. Friendica had it before everything else back then.
I'm not even sure if the #ActivityPub connectors (none of these projects is based on ActivityPub, all are based on protocols developed by Mike himself) translate dislikes in the first place. They're the only way to establish connections between Friendica and the other two, but I don't know if ActivityPub itself supports dislikes.