"Somewhat useful" is about right.  But then they extrapolate to be a "new internet" etc.  Same people.  The thing I found with this, and so many solutions like it, is that really strange things happen to your network after a while.  It could be a few days, it could be a week, it could be a month.  First time I thought it was my router broken.  But just strange  things happen like DNS stops working, or everything in the house goes slow.  There's so many of these little "paper cuts".  Im skeptical they will all be fixed one day.  After all LANs are set up to stop this.  Which is why websockets are great, they get through every  fire wall.  That's the reason nostr works.