Comment by throw0101c

> It's slightly unrealic idea though, as most of internet users are consumers, and that's the role they really prefer.

Because just about all applications are currently architected in such a manner.

When Skype first came out many moons ago it allowed peer-to-peer connections with clients, but a lot of clients were behind NAT (especially ones that could not do PCP or UPnP), so Skype had to come up with the notion of "super nodes" that could do relaying.

Protocols like STUN/TURN/ICE/etc had to be developed to deal with all of this blocking of traffic.

If clients could know their 'real' addresses and allow things like PCP (which is often needed for (e.g.) video games), then perhaps there could me less strictly consuming and more collaborating.