I commented on Facebook's plans to unify messaging across their platform earlier today. Axios nail it (emphasis mine):
It will bring together users of all three apps in a single network, database and community — enabling new features and opening the door to even more anticompetitive challenges, privacy troubles and social conflicts.
It's clear there is a bigger plan in play here and perhaps it's as obvious as bringing things closer together in order to prevent them being broken up, but it feels like more of a lack of understanding.
With no leaders from their pre-acquisition eras, the question is when rather than if or even how.
Facebook is committed to users' having a single "real-world" identity.
It's very easy to forget this aspect of Facebook but one of the reasons I do not allow any social media buttons on my websites. A link is all you need.