He's the one who posted it online. Fine if others post that they think it's bad, and why. Laudable, even, if you suppose he posted it to communicate some messag

He's the one who posted it online. Fine if others post that they think it's bad, and why. Laudable, even, if you suppose he posted it to communicate some message and others find that message to be harmful or misleading or otherwise bad. They ought to post what they think is wrong with it.