The bottomline here is that Steem price is supported only by traders/speculators and people investing into it. Creators and curators generate their own SP so they don't really need to power up (I would say power down is more logical).

Do these people have 10-20k in Facebook shares? I really like Steemit but this is an unproven platform in the world of crypto. Many things can and will go wrong. A lot of newcomers into this world are for a rude awakening (scammers are already running amok as usual in the crypto community for example).