Twitter likely tests 'Liked by Author' label for tweets
It looks like, once the author of a tweet likes a reply, it is marked with a badge that is visible to both the person who left the reply and to others viewing it, the report said. Although it is unconfirmed if the label is being tested globally, we're seeing reports of users in several countries spotting the label, it added.
The report mentioned that it is worth noting that the new label is similar to TikTok's "Liked by Creator" badge that similarly appears when the creator of a video likes a comment.
The new label may also be useful in instances where a tweet has received numerous replies and the original poster wants to highlight a few of them without having to directly reply to them.