Fediverse

Neat metaphor and the citations are much appreciated.

I feel like a bit of nuance is lost in this explanation of its initial rise:

It originally persuaded people to consent to this by allowing them to send text to each other over the Internet, something that was already possible, and combining an easy-to-learn UI with successful marketing. It then expanded to include features such as voice and video calls.

It seems like there was something rather unique about being able to make free calls, perhaps especially in (Eastern?) Europe and around the less developed world, with encryption as a bonus. Perhaps other options in the list you provided were viable and marketing played an important role, but I think something about WA made it a killer app.

I’m curious what others have to say.