Normally I would think a drop in replacement would mean I could switch to it and do everything the same as I was doing it. But my guess is that if I did this drop in replacement that little to none of the web activities I partake in would work anymore. So maybe my thoughts aren't quite what is meant.
The P2P aspect looks much better, but naturally there's the question of how this is differentiated from something like Tor with .Onion sites?