I'd guess that people probably thought his comment was fake (not sure about any other comments, even his comment doesn't seem downvoted): The OP's original com

I'd guess that people probably thought his comment was fake (not sure about any other comments, even his comment doesn't seem downvoted): The OP's original comment contains entire praise for the product being described in the article, almost the point to marketing speak -- "it's one of the few products that we use at work, but doesn't feel like work to use". It also contains multiple smile faces in the post, which make it feel disingenuous. Almost no comments on Hacker News contain smile faces, so mix this with the praise, and people could take it as a comment that seemed fake.