That is a very bold statement. Do you have data to back it up? Our data says otherwise. We employ 20 people and we’re growing fast. That wouldn’t be happening if, as you say, “all old style forum sites are dying”.
It’s great that you’re sharing your ideas, but the features you are discussing are better directed at the Question Answer Plugin. If the plugin is lacking some features you need, you could sponsor custom development or find other ways to help out.
Being a Q&A platform is not Discourse’s primary objective. StackOverflow and Quora do that really well already.