This is an utterly idiotic comment, I’ll break it down into bulletpoints to make it earier to understand.

1. The comment assumes that I didn’t read the article, this is semi-wrong, I skimmed it, and found nothing of what I wrote in the article.
2. The comment provides ZERO additional information, it is pure snark, and does nothing to inform me about what I missed.
3. The comment assumes that everyone else also reads the article, this is not the case.
4. The comment forgets the advantage of summarizing for others, if my points was found in the article, it is a good thing to summarize them in a more accessible way.

With these point in mind I believe you can make an effort to make a better comment next time.