Another aspect to consider with the VPN service is bandwidth control. General surfing / browsing via a VPN running through a connection is one thing, streaming 4K UHD movies is quite another. I think there needs to be something built into the product that allows a VPN provider to cap the bandwidth usage.
This...
A decentralized VPN service should be used for anonymous browsing not for streaming TV Shows/Movies from other countries.
That is an interesting point, but since gigabit upload speed is more common, as long as they are able to get paid, I'm sure people will allow their excess bandwidth to get used.