ok. this powerfully stimulated some thought, and just spun out into a sixth possibility, elaborated on here:

The $1 Billion Steem Development Fund: How Steemit Inc.'s Stake Could Be Best Allocated To Grow A Thriving Network Of Applications And Users...

Would appreciate your input - and if you dig the idea and might be in a position to share it with any of the parties capable of effectively advancing it, share where / with whom appropriate. 🙏