[ancapsfascists]

The statement is "[4chan] is linked to massacres". This is simply a statement of fact, and it doesn't mean NYT isn't.

(I'll be the first to call the NYT a rag, as a leftist, but it's factually correct to say 4chan is linked with massacres.)

[_v7gu]

That’s why I said stones instead of lies. I’m ESL, but I believe that phrase relates to hypocrisy rather than slander.

[ancapsfascists]

You used the expression correctly, but it often implies, "... and therefore the criticism is invalid."

E.g., NYT shouldn't level this criticism because it could also be subject to the criticism.

Hard to tell with a written forum post.