Social Media seems to be good for short barks of propaganda, but no real meaningful discussion. So, I think forums could possibly net a different sort of individual. I fear development relying on the mass of folks tuned into social media would be ultimately unsatisfying. It might sell games of course, but it is unlikely to create a game that will be fondly remembered twenty years hence.
If Larian wants to sell memories, start selling Fantasy Characters and send a miniature even to home. I played DOS2 like 3 year ago, I dont honestly remembr nothing else, than the trance mix I was listenening from YouTube.