Personal data storage is an idea whose time has come
Personal Data Storage has long since escaped containment as a concept pertaining to any specific protocol. Some implementations of it will be more mainstream than others, but pragmatic data coops can be protocol-agnostic and storage formats are transmutable.
As long as we have sufficient control of our own data there will always be a way to restart our social graph and digital presence elsewhere in the event of platform collapse. Let’s make the web personal again.