From the HN guidelines:

'Please don't comment on whether someone read an article. "Did you even read the article? It mentions that" can be shortened to "The article mentions that."'

It doesn't add anything to the discussion. And in this case it was very clear that the OP read the article and just missed that part.

Your comment would have been just as informative and less snarky if it was simply:

There's a small part about whiskers that already convey enough meaning:

> UNACCEPTABLE WHISKER

> A whisker is a slender needle-shaped metallic growth between a conductor and a land. Typically the result of mechanical stresses in high tin compounds, it is a reliability concern."