FWIW, I personally have found Steemit to be a great crypto intro for people. By the end of talking with them, they often are asking far more Bitcoin related questions than Steem questions, even though I've been trying to get these people into Bitcoin for years. It would seem to me that Steemit has given validation that crypto "works" to these people, so once they realize that, they immediately want to know about the Crypto OG.