because Telegram's UI/UX is second to none; possibly iMessage or whatever it's called is close, albeit with way limited functionality. Signal and friends look like a PoC from 2015 in comparison. also the apps, on mobile and on desktop, have a low memory footprint with no bloated electron crap, the cross-device sync is phenomenal and there's the virtually unlimited cloud storage. if an addon could piggyback off of that, that would be spectacular.

however, OP's insight as to this being against ToS is obviously a deal breaker. seeing as how they're adamant about leaving all your shit unencrypted in the cloud I'm looking for other havens, begrudgingly; I've been a user from the early days.