It seems that a very common problem among all block-chain based social networks is that the content on them is almost exclusively about cryptocurrency and the dapps that are associated with them. Unless content on a more broad range of subjects starts getting generated there's never going to be any interest from the general public.

This problem honestly isn't specific to the social applications either. There are lots of games and other applications that seem to be a cryptocurrency or a block-chain with an application on the side rather than the other way around. User retention for Ethereum as a whole is looking great but for the smaller projects like Steem, Tron, IOS, NEO etc it's not looking great.