Steem being decentralized yet provides no security? How valuable is that? Also it's open to coercion.

How can I know an upvote isn't from extortion? How can anyone know someone isn't being coerced into upvoting certain accounts? You wouldn't know. So whales could be extorted as we speak and you wouldn't know. Whales could also be extorted to delegate their SP and we'd have no way to know that either.

So Facebook has far more security.

On Steemit people choose how much information they put about themselves and maybe a solution would be more education for new users about the dangers of including too much information/picture of themselves.

Right. So Steemit is only for pseudo anon accounts. Thanks for confirming the fact that real identity+Steem can never work. Identity+Steem=open to coercion if the account is worth enough to make the effort work it to the bad guys. An account with millions in Steem Power very well might be coerced into spending that influence in ways the account holder doesn't want.