you are right about FB of course but I never really was a big fan anyway and hardly use my account and havent posted on it in over a year...
BUT the question is what would happen if those big shareholders take some of their FB dollars and move over to steem and take over the platform... a couple of million is not that much to them but could drastically change steemit and the way things work
imagine the marketeers taking over the trending topics and start censoring because they have the big bucks at their disposal...
someone I follow (@tarazkp) wrote a really thoughtfull article about this and he does have a good point
Lets not grow to fast, lets mature Steemit, not explode it
https://steemit.com/steemit/@tarazkp/no-country-for-hu-man-steeming-into-the-future