Yes! Several members of the forum I run have complained about this.
We have been using Discourse for 8+ years and being able to see who liked a post is a part of the community culture. It’s a way of communicating, e.g. to know that a particular person has read the post, to get a signal that someone is interested in some project (e.g. you might contact people because they liked your post about something) and it’s a source of fun, e.g. people make memes about a particular person unexpectedly liking a particular post. People immediately noticed it when the likes were hidden, several users posted about it on the forum and everyone, including myself, thought it was clearly a step backward without any apparent benefit.
If you don’t fix it I will have to fix it myself e.g. with a plugin. Not a big problem, I have plenty of custom plugins already, but this seems like something Discourse would want to have for everyone.