Doesn't Bitcoin already have the throne of the "global digital currency?" I don't know about this Jack Dorsey guy he has never really been on a business winning streak only a hype one over the years. Square has gone flat and Twitter with all of its user and worldwide publicity still can't make any money.
With that said we are in for some changes but we need more time to lets things settle down.
In terms of facebook I like you have been railing against their schemes for years. They are the absolute worse and as you can see from Zuckerberg, they have no plans to change.
We have to be mindful about these places where people gather. Strange things can happen and agendas can cause people to get hurt especially when there is the prospect of making money.
The model is a difficult balancing personal advancement with community good. It takes a group in charge who both cares and is really switched on.