User blog comment:Just a Guy That Likes Creepypastas/What exactly is kudos?/@comment-24101790-20190126221647

It is what you thought. It's basically Twitter/Youtube methodology. Like a comment or a post on a forum, you can give it kudos. It's not used very often as it really doesn't have any impact on the user. They aren't notified and it doesn't affect placement of the comment so it comes off more as a vestigial thing back from when Wikia was trying stuff out.