39% of Total SP has gone unused in the last 90 days. Of this @steemit owns 60%.
I was always intrigued to know these stats, so thank you for that.
The help people understand what you understood with your research I love to tell people that if they would be the only person to vote during a 30 days period their vote would be worth the entire reward pool which is currently close to $2.5M.
And to answer your question, if everyone would be voting that would mean there is a lot of value in voting and thus STEEM would be worth more. Their can never be 0 STEEM for sell because that would mean the demand is infinitely high and that's kind of an impossibility.
As for Steemit Inc delegation there are pros and cons. Steemit Inc has the most to lose from their actions. Hopefully they have calculated the risk carefully.