If you want actually good privacy with a VPN, also good luck with that. (There are very few good companies doing the best they can here, but they are still limited technologically.)
SPN can be seen as my attempt to solve both of these issues.
Mycoria routers, proxies, Tor exit nodes, and VPNs are difficult to run. There needs to be an global incentive, economy, or private community usually. Our Delft University students wrote "The fifteen year struggle of decentralizing privacy-enhancing technology" a decade ago. Scaling to many millions or billions is unsolved.
Have you talked to any lawyer or law professor about your MVP? "Being welcome" has known drawbacks when you operate a central DNS service.
Interesting. Can you link that paper/article?
The DNS is not central. Everyone maintains their own local mapping. When accessing a website on mycoria, you open a URL like this that first creates the mapping and then forwards you to it: http://router.myco/open/speedtest.de.myco/fd13:6239:a07a:eb4...
I'm not who you asked, but this appears to be the article: