You could do that, but HN guidelines ask us to assume, and post in, good faith. Blindly assuming/implying someone didn't get their source from some kind of tru

You could do that, but HN guidelines ask us to assume, and post in, good faith. Blindly assuming/implying someone didn't get their source from some kind of trustworthy place and then giving them grief for it is not a good faith comment. And it discourages people from asking questions in the future. OP seems genuinely curious and open to whatever answers they might get. Why be a dick to them?