Playing with encryption is like playing with fire. Much worse actually. There are no partially broken encryption products, only 'not yet broken' and 'broken'. Time and time again, here on HN and elsewhere, people with cryptographic capital have staked their reputations on calling out Telegram as 'broken'. So why would anyone even want to touch it with a barge pole? It may turn into a 'not yet broken' product someday. But that day is not today. By pushing Telegram as 'secure' i.e. 'not yet broken', you and others are doing a disservice to the users at large and the crypto community in general. So stop calling the bloody shovel a spade.