Just to get the complaining out of the way, discussions in Canvas are clunky for robust discussions. I'm migrating a course that in D2L had 400 posts each week per discussion. D2L could handle that. In Canvas, that will be a scroll-fest.
So, having said that, what creative solutions have you come up with to foster robust discussions in your discussion-heavy courses? I want to hear ALL your ideas. Solutions don't have to involve native Canvas tools.