You are simply giving him an excuse to act that way. The fact that so many others DON'T have to speak that way proves the point. The point is, HE is the one with the link. Although I have never clicked on the link, as a Christian, it does us harm to have someone be so hypocritical. 2Timothy 2:19 "Let every one that names the name of Christ depart from iniquity."
Judging by his grammar, it takes some time for him to type. It is not as if he is blurting this stuff out. He is giving it some thought before hitting the "post" button.