I abhor the viciousness and incivility that has become commonplace among the comments section. But is our society more likely to renew it's esteem for the virtue of restraint if we pretend that we can mandate a series of bubbles that don't require any tradeoffs? No. 

When someone personally attacks me in the comments section, it's up to me to respond without personal attacks. Succeeding there has two benefits, it undercuts what I hope our society will broadly agree is an ugly tactic that shouldn't be accepted... and it increases my character (you have to *practice* things like patience, remember?).

Making those choices billions of times over is the only chance we have to disagree with each other kindly, and without the continued (and unsustainable) strains to our country's unity.