I resteemed that a while back because it is something I wanted to look into.
And like you I have kept it in mind as I watch things unfold.
I think you may be onto something. You actually may have given me another piece of a puzzle I have been mulling over for a while.
I have been able to see how the investors are needed. Also the SMTs coming into play so that large companies can use their own token reward system.
It is very obvious the "social" aspects will go through some pretty radical changes. I feel like a lot was hinted at with the "hive" or community features.

I have since I arrived here been thinking about the why behind the "quality" posting. At the time I was thinking if I figure out what was the purpose behind rewarding content, then I could know what to produce.

Also I kept reading this is an "experiment" I wondered exactly what was being tested out.

All I could come up with is that all these people doing all these posts were basically feeding Google. Could it be that is what was being rewarded. Think about it almost any topic you search there is a link back to Steemit.
"Quality" post is driving traffic. Not only that but ones with lots of comments would rank higher. Google loves a site with tons of fresh content on a daily basis.

I think you have nailed it. I also think I may be very fortunate to have gotten in when I did. On the one hand I have met some amazing people, learned a lot, and had an experience I will never forget.
On the other hand I am thinking it could be very advantageous to get involved with a few "communities" now.
Seems like there may be potential for one or more to really take off and be very rewarding.
I know you are involved in a lot of initiatives. I think better up my game. Just posting and commenting will not be enough.
Ooops sorry been trying to sort these thoughts for a while guess I am happy to encounter someone who is seeing it. I am just bouncing ideas.