Author here. AMA. Happy to work out the details of how this would work if anyone would like to see. It takes a little more than just "bitcoin" - you don't want most transactions to be on the blockchain, for instance. Instead, we would do what Streamium did, which is to use payment channels. That will allow for tiny payments.

Also, how the hosting and sharing of content works requires a lot of effort. We can use Web RTC to do the p2p communication over the web. Most people don't yet know this exists - but p2p communication over the web is indeed possible. The only catch is that you need a rendezvous server. That server would be run by anybody, so the network would be two tiered - the simple-to-use web clients that share content but don't provide the rendezvous service. Then the "full nodes" where the users would also run a rendezvous service, allowing people to find each other.

To most users it would look and feel similar to reddit. Anyone would be able to run a "business" by just running the "full node" app full-time and delivering the content to users.

Of course there's a lot more to it than this. I've solved many of the problems, but not all, and there is no prototype yet. But I believe the fundamental technology now exists to create a decentralized reddit, where the users get paid for hosting the system and providing the content.