Steem Communities and many Steem Apps have not even launched yet. Steepshot, Zapple, BB boards, SteemTV and many more we don't even know about yet. We are witnessing the exponential S curve on Steemit. Twitter, FB, Uber went through this in early days. We will see 100X growth from todays numbers over next few years. Early adopters will not sell any Steem now. Steem has first mover advantage in social blockchains like Ethereum in smart contracts and Bitcoin in a the first decentralized payment currency. Steem is here to stay.