There's nothing wrong with it if, and only if, people understand that's the choice they're making.
Here we have an exodus driven by *privacy* concerns surrounding the new policy. Users fled from WhatsApp to other services with the intent of keeping their conversations more private. The subset of those who switched to Telegram made their conversations strictly *less* private, achieving the opposite of their goals.
> Users fled from WhatsApp to other services with the intent of keeping their conversations more private.
That's not strictly true. Users fled whatsapp to keep their messages away from Facebook. It could be a concern for privacy or a concern for not letting Facebook (specifically) monetize their conversations.
There's "I'm plotting criminal activities or planning to overthrow my government" messaging which requires secure encryption.
And there's "I don't particularly want to be followed round the intarwebs by adverts for piles ointment, because I mentioned my itchy arse in a message to someone" which requires respect for your privacy.
I reckon most of us are happy enough with the latter in daily use. And, when we do need to plot an overthrow of the government, we can always flick the big "secret chat" switch. I think Telegram just about gets the balance right; sacrificing some default secrecy for ease of use, seamless sync across all your devices and 'fun' things which are likely to lead to wider adoption --whilst also allowing you to switch on the more secure stuff, as and when you need it.
Here we have an exodus driven by *privacy* concerns surrounding the new policy. Users fled from WhatsApp to other services with the intent of keeping their conversations more private. The subset of those who switched to Telegram made their conversations strictly *less* private, achieving the opposite of their goals.
There is something wrong with that.