The internet has been around for many decades now. The world hasn't ended.
> arm adolescents with a proper mentality for handling online harassment under the assumption that it is likely to occur.
Most teens are already armed with proper mentality. The only teens who aren't armed are those who have been coddled in safe spaces their entire lives. Maybe spending time in some "toxic community" would help toughen them up.
How about we worry about teaching kids the basics and stop wasting time with nonsense? I'm told by the "chicken littles" that schools are a complete mess. You want add more time wasting nonsense to schools? It's always the controlling old people who thinks the younger generation needs their help.
> since the problem of policing online speech without creating a locked-down surveillance nightmare seems unlikely to be solved any time soon
People like you scare me so much. I still don't understand how you ended up in a forum called "hacker news".