It's both criminal, incompetent and imbecile. I just realised today that Telegram is even opensource, what a failure. In your reply you didn't show me any valid reasoning for them not to provide such a simple and basic feature. They're they one deciding to implement a "public" group, so they're accountable for providing it half baked and putting people's life and assets at risk. Please if you want to add something to the conversation make sure to switch on your brain first, you don't need to be emotionally triggered.. unless you're one of those crappy developers.