Agree.

Complaining about civility is the first step toward letting morons rule.

If one is making foolish or false statements, one should expect to be humiliated. Come back when you are better educated.

If one is being an asshole for no good reason or making false accusations against another due to losing an argument, they should understand that they are now a legitimate target for everyone to dump on with impunity.

Being confidently wrong, or an asshole without cause deserves equal or greater consequences to the harm caused. Public shaming via humiliation - aka incivility - is more effective than actual punishment or moderation.