@PunishedD They have learned well that people want to be able to control the scope of their content, how it is used, and what flows on their timeline.
They have restrained themselves from the elements that they tend to impose as a platform provider, and have successfully reproduced the user experience that can be obtained in a decentralized system.
Unfortunately, however, because it is inherently centralized, mixi2 does not obtain the fundamental advantages of a decentralized system. It only partially reproduces them.