Has a bad reputation because of copyright infringement but could be used to legally distribute patches. Some users could even get paid for keeping their machine on during off-hours and serving updates.
As long as you have to muck about in your router settings to configure port forwarding or disable reflexive ACLs, peer-to-peer will never catch on with the general populace.
It's more the sort of technology that you only notice when it doesn't work, otherwise it is subtle magic that you don't see. A lot of software relies on it in one way or another and works better with it, but of course it's tough to know when something is UPnP powered or using some fallback alternative.
It's a small leap from AWS outposts
and snow*, to running an AWS hardware appliance in your home, pay as you go for self hosted compute and storage, and credit for spare capacity that is utilized by other customers.
Has a bad reputation because of copyright infringement but could be used to legally distribute patches. Some users could even get paid for keeping their machine on during off-hours and serving updates.
EDIT: Why the downvotes?