This is weird. I have never visited this comment section before, but four comments are marked as having been up or down-woted by me. Votes that I wouldn't have made.
"Happy" here has the hover text of おめてとう, when it should be おめでとう. If anyone reads this in the future, please double check & report if its still wrong. This'll be a hard fix to get visibility on because of how small it is.