Why the fuck they had to infest the only reasonable product (they bought) - whatsapp. Outside of US its more used than sms or any other chat, including apple ones even on apple platform. No other meta app has any reason to exist on the phone of any reasonable user (I know most aren't, but this is HN and not army of social network addicts wasting their life online).
I guess it was to be expected, but I hate meta products with passion and removed them from phone many years ago (when they were leeching battery hard even when not used), cancerous leech of humanity for the goal of getting fer people ridiculously rich and richer.