One of the things I intend to prove is that this is unnecessary and anti-decentralisation.

Centralised platforms need the promised 99.999% uptime that a data center can provide (at a huge price), but de-centralised platforms don't need it.
The whole point of being decentralised is that redundancy is provided by the very large number of witnesses and nodes provided by independent people.

Having so many witness nodes at a very limited number of data centres is a huge problem for decentralisation, censorship resistance and freedom.

What if Privex gets a Court order to censor your posts?!