Everyone who has been criticising Telegram would actually love for them to do what you've suggested. We want good, secure encrypted messaging. Telegram is not it, and people are worried, as their actions so far smack far too much of a project that ignores best practices...

In the crypto world, projects like Telegram have popped up over and over again. A new protocol, designed by non cryptographers, that turns out to be heavily insecure. I wish that wasn't the case, but that is why people have reacted the way that we have. This is literally life and death, so it pays to be cautious.

I hope Telegram learn from all this, and go and get audited and tested by reputable experts. Then, fix all the issues raised. Then release their apps to the public, when they are proven secure. Until that time I personally will not trust their application.