That's right. It's better to leave a good comment than just say thank you and nothing more.
Sometimes they just copy and paste, and other details that we sometimes see in the minor comments.
I think that is a lack of respect for the person who writes the publication, by leaving comments that we don't even know what they say, or they only write what is said in the publication.
@lupega is a good commentator, I can attest to that.