Though there may be good information in this post, it's hard to perceive it as an objective piece. The author is already powering down, so he isn't investing in steem at all. But, getting others to invest their money into buying steem will increase the amount he can sell his steem for as he continues to power down.
The price of steem has been consistently dropping since I joined the site a few weeks ago and until a demand for steem is created, I don't see any reason for it to rise again. Facebook's market cap is so high because they make so much money in advertisement and sponserships etc.
I know that steemit has been trying hard to avoid that, but, if they were able to find a way to include advertisements on the site, done in a tasteful way, and also made those advertisement sales purchasable only using steem, then that would certainly increase a demand for steem. Users of the site could also have adverts disabled in return for investing 75% or a little more of any earnings back into steem power, giving incentive to hold onto steem longer and keep the price higher for longer.
I know literally nothing about this type of thing so perhaps I am making no sense, but it seems like a logical solution to the problem we are faced with regarding the falling price of steem.