Whilst I agree with your sentiments, a 2 word comment really is useless, not matter how great their English might be... rather than a "that's amazing!" type comment, a simple upvote on the original article would suffice, kind of like discouraging "Me too!" comments on Stackoverflow, it doesn't add much to the discussion.
Although having said that, my initial thought was the OP had hit return too early and not realised...