Ok, that explains how it works for now. Still not sure what the "we will do something even better" (after the removal of official API on disliking) part means in the following statement:
>Hey there, I have just checked the Youtube's official change-logs and it seems that they will stop providing dislikes in the youtube Data API. That's why I am launching an archiving API that will allow anyone to see dislikes of any videos. This package will keep logging number of dislikes of any video and feed it to the API. In future, we will do something even better!
I'd imagine the plugin will end up morphing into a dislike button, so users of the plugin will be able to dislike a video and see the dislikes from other users.
>Hey there, I have just checked the Youtube's official change-logs and it seems that they will stop providing dislikes in the youtube Data API. That's why I am launching an archiving API that will allow anyone to see dislikes of any videos. This package will keep logging number of dislikes of any video and feed it to the API. In future, we will do something even better!