I think we need facebook, google, instagram and other centralized media social alternative...
Blockchain technology is the best alternative, with decentralized, demoracy, open system, no ads, etc... like steemit.com. hehehe..
Blockchain is the future if internet, it will make internet more functionality...
I hope and that this steemit reaches the level of success of Facebook .. blockchain make the internet more efficient and we can enjoy the gains together