Comment by vladvasiliu

> I think most of its use is simply local, for your community or friend group.

I live in one such country, and indeed, the bulk of my usage is to coordinate with local groups based in the same city.

But tend to meet many people from the US who don't live here, and they all straight up ask for my whatsapp.

I'm also a heavy telegram and signal user, and can't recall a single instance of anybody mentioning these.