Isnt too much of attention paid to anonymity? It looks like every second person is a paranoid or a spy target. Im sure that it isnt so, consequently, the market if such platforms is very limited!
Online privacy is one of top Internet problems. Were living in a world where cookie-files-based advertisement, cyberattacks and commercial spying have become real. 80% f users of social networks are concerned about the issue of advertisers access to their info, 70% are concerned about the fact that the government tracks their private data. So the SiSUB services are relevant for most of users.