I don't appreciate being called an idiot, I was not the one that started slinging shit over nothing. And their baseless insults towards me are not something I need to respect or be compassionate towards.
Also the manga absolutely never had a message that violence is bad, Ogino actively idolizes Yoarashi's violence up to the very end, and the rest of the class facing no legal reprecussions only provides the message that violently beating people will not get you in trouble except for possible revenge by a vigilante or unless you literally murder someone. The messages were that violence is good if it's vigilante justice, and completely excusable if somebody else convinced you to do it (considering how the rest of the class was framed as more or less redeemed in the end). If the manga really wanted to have an anti-violence message, everyone in the class should have gone to jail, not just 2 of them.
And even then, equating a verbal confrontation in a forum to beating people to near-death is certainly a take.