I clicked around a bit trying to find out who creates and runs Session.
And of course it's built by someone pushing a new crypto currency. That made me really really sad.
That's because it's essential to providing incentives to the operators of the nodes where messages pass through. I know it's fashionable to hate on crypto because crypto but please try and see it from a utilitarian basis.
Session has a lot of cool things going for it. They managed to solve the problems of P2P (high battery life number one) with these incentivised traffic passing nodes. They improved on TOR and you can already use the fruits of its invention for general traffic.
The big problem as I see it is the team is all Australian. They'll need to find a way to pass stewardship to the community in time.