[merinowool]

It will be easier for governments to shut down small instances and smear the owners. I don't think decentralisation has much security value.

[phs318u]

https://en.wikipedia.org/wiki/Whac-A-Mole

[manigandham]

This always ignores the fact that several things like networks and server hosts are still fairly centralized.

Unless everyone is running instances on their mobile phones using a giant global mesh, it is perfectly within the capabilities of modern nation states to shutdown these networks.