All great points...and agree any outside the box thinking is a good thing. Growing the game can only happen at a very granular / local facility level by developing new ways to play and LEARN the game. At the end of the day though, there is a lot of history and tradition in golf; 18 hole medal play will never be replaced by a new format. What we watch on TV is still the NFL/NCAA football, but local football games have modified rules. Why not do more of the same at our local golf facilities?
We have a local facility here in Austin that is semi-private called Grey Rock Golf Club. They do an amazing job with a limited budget and reasonable price of engaging local golfers. Lots of quality instructions for every skill level...individual or group. Lots of membership options; full playing, driving range only and men's league only memberships. They have done a great job with social media to drive engagement and with the Men's League. It is what first got me playing more at Grey Rock. Weekly Wednesday afternoon 9 hole events with a different, interesting format each week...it really makes it fun to go play the red tees or with only 4 clubs or with do-overs, etc.
I met the guy that started Kangarila last week at the PGA Show. Pretty interesting new way to play with a ball that tells you what club you have to use on the next shot. http://www.kangarila.com/
Personally, I think we have to find a way to get more golfers practicing their short games so to improve scoring. A better short game = lower scores...and I believe anyone that making the game more fun to play is directly related to shooting lower scores/consistent improvement.