well, I always promote on Twitter each of my post here on Steemit. :)
otherwise, I don't use any other social networks now.
however such a promotion by itself will not help much.
better idea would have been for example: if some of the whales or Witnesses or Steemit Inc. Devs or whoever else - created a Full Charged and Boosted genuine authentic STEEM Coin Faucet! (I've written about it recently, explaining the benefits of it)
there are a lot of Faucets of various other Cryptos for years! from BTC to Doge, LTC, ETH, XMR, etc and even all sort of newer coins. yet somehow till now there is now any organic STEEM coin Faucet! although there are so many Devs, so many Apps etc. all those Apps and Steemit too - could be easily promoted by that Faucet! and certainly STEEM coin could be made more and more known to wider masses of people.
but only mentioning along of STEEM here and there ... that would hardly attract much interest! because there are too many Crypto coins already. however people (especially youth, teens) like something "Free". yes, Steemit sort of provides such an opportunity - however not all can easily learn how to use it within short period of time and there are many other factors (like, posting takes time, etc). besides, after HF20 it became more hasslesome to even create an account on Steemit, what to speak of all those RC/ VP / SP intricasies - which can easily discourage any newbie (especially taking into consideration language barrier).
While Faucet makes their task much easier: usually it is just simple task of solving Captcha. (BTW those genius Devs could even create their own Captcha, not depending on the commonly known; or even make something entirely new instead).
I am truly surprised that from so many Devs, Whales, Witnesses - nobody seems like bothers to use such a good Promotional Tool for STEEM coin? MANY people online have learned about Crypto - from such Faucets! because there are a lot of people who constantly search about ways how to "make money online", "passive income" etc.
Hey great to hear your opinion. I'm a noob and am still learning the details, like voting, while posting content and desiring to grow if you have any tips. STEEMIT is fascinating and I'm really inspired to a member.