Very good project. I think that there are not enough people who will like it if someone will be introduced into your private life. Telegrams will soon be blocked in Russia, as Durov refused to transfer private access keys to special services. A Facebook, on the contrary sold the data of users because of what came out scandal. And what do you imagine? Closer to Facebook or Telegram?
You are absolutely right about this, even if Telegram will be blocked or not, blockchain will always be sustained as long as we have user support. We are closer to Telegram if you are asking about encryption but to a whole new level.