Did you read the article? They said there was no performance hit.
The fundamental problem is that the voting and karma system actively incentivizes this kind of behavior. No amount of "did you read the article?" comments can counteract that force. All they do is increase the noise level even further.
As is making assumptious comment without reading the article, especially when the comment may be wrong. I think it's not only unhelpful, but actually harmful, because other people, who also jump straight to comment section, may form an opinion based on misinformation. Also, timbit42 did provide us with what they read in the linked content; unless they added it with an edit.
And if they need help accessing it, help can be arranged.