Thanks for the comment! I was more thinking of just how long it would take to reach Facebooks current level of usage and not really comparing their growth rates, but that's definitely something to look into. For #2, I think it's more of understanding how SBD and Steem works and not really the whole blockchain. Also, knowing how to transfer your steem to Poloniex or an exchange for bitcoin and then transferring to fiat requires some knowledge of the blockchain. Thanks for checking my post out!