The post is mostly nonsense, but that said, I'm always astounded by how few nodes there are out there. Checking now and there's just 2,713 of them - though this number is low because of a bug in the latest software which removed thousands in September for some reason. It's never been higher than 7,000 or so.
How long would it take you to write a script which DDOS all of them? How many are run by organizations which can protect against attacks? My guess is not enough. Considering the amount of money relying on those measly ~3k servers out there? It's truly frightening.
The soft underbelly. That said there are people building dedicated networks for blockchain node connectivity (similar to the data transit networks run by Google, Amazon et al). Private lightpath.
How long would it take you to write a script which DDOS all of them? How many are run by organizations which can protect against attacks? My guess is not enough. Considering the amount of money relying on those measly ~3k servers out there? It's truly frightening.