I know for a fact that anonymity can be used to encourage diversity of thought and honesty on public channels - this is the feedback I get from customers of a service I run (https://AnonymityBot.com).
It allows Telegram users to hide in plain-sight, within the noise of other Google Translate web users.
I'm pretty sure that using the official pre-built java SDK, as suggested by the author, would allow Google to cluster the content of Telegram users (since app-specific id/token should be sent).
Other than that, a great read and kudos to the author for shedding light on it.