Until both the code and the culture changes, there will be innate disincentives from the way the coin, inflation, and reward pool distributions are now, to spreading the word about steemit if you aren't past the threshold of owning enough steem to make the increased value of new users buying into steem be worth the increased competition you face as a poster trying to earn income from SBDs instead of your investment in SP or steem.

So the lack of excitement from any new steemit users on other social media shouldn't be a surprise. It's only in the whales' interests to want more people to know about steemit. Once someone is here, unless they are dense or trying to get upvotes for their promotional activities irl, they usually keep pretty quiet about their new revenue stream/crypto faucet because they know more visibility just means more competition for the dog food bowl.