Suggesting someone to apply critical thinking is anything but. Your confrontational attitude is though. Another thing becoming of HN.

you are being rude in the first place. You could have framed your comment better. quit HN if this community is disturbing you so much.

I disagree with your original comment. Yes, we can read the source. Yes, we can analyze it ourselves. But time is limited to all of us. The product should state exactly how it is different with the competition and why we should pick it. This is similar to how pg asks startups to describe themselves in one simple sentence. You don't tell pg that he lacks critical thinking for not reading my website.

Stating how you are different gives the customers focus. If you state that you are different because of X then you can go into the code and look at X particularly.