Yeah. Define proponent indeed. What were they selling just a few years back? Why are they plugging the opposite things now? Decentralisation is wonderful. But does that have to mean non-eraseable? Are there any drawbacks to the giving the internet an indelible memory? Of course. The enemies of humanity will exploit the zeitgeist in their favour, whichever way the wind blows. The internet is just a tool, let's never forget it.