Those may help, but I'm not sure what they could do other than breaking the core conceit of their platform (short form, limited space) to really deal with it.

Those may help, but I'm not sure what they could do other than breaking the core conceit of their platform (short form, limited space) to really deal with it. Limited space to express your intent, and the quick response cycle it engenders are not conducive to productive discussion. It's hot-takes and terse replies that people interpret as hostile even if they weren't meant as such all the way down. Take that out and what makes Twitter any different than every other platform? Though, maybe they're large enough and popular enough they could weather that change.