Is there one that is truly decentralized? On Steemit, minority voices can be effectively muted when more powerful entities start voting down every single thing you published. The company is also US based and the government can hop in and shut down its blockchain if it wants to.
To be truly decentralized one needs to be truly anonymous. Otherwise it is easy for governments to plant a “poison pill” and then use it as an excuse to shut down the entire operation.
RE: 10 Decentralized Blockchain-Based Social Media Networks to Use Instead of Facebook