Social networking databases are a valuable resource because information has always had a price. And users have the right to control how that data is used. Therefore, the blockchain technology should be integrated into social networks, so that at last the user has the opportunity to control how the information is stored and used. But have u seen SM that use blockchain?
And many social networks would like to make a method of payment tokens. But here their position is not too correct in my opinion. This is not the full inclusion of the blockchain in the ecosystem, which would lead to more transparency in the relationship between the user and the system. This desire to maintain control, only allowing users to use digital currency. That is, the practice of obtaining commercial benefits for social networks is still preserved even without the consent of the user.
I'm not sure that existing social networks will agree to restructure their policies and give the user more control over their data. Here, rather, it is necessary to make new platforms from scratch, and I even know some projects that are fully capable of replacing instagram or facebook. One of them is taklimakan, built on the principle of encouraging the user to create good content, including educational, so that more people can learn the blockchain technology and cryptocurrency management