> decentralized social media hasn't had its try for the title yet
That depends on the answer to your first question. If HN is considered social media, then Usenet needs to be considered social media. In which case decentralized social media already had a good run, but users eventually came to prefer centralized systems.
That depends on the answer to your first question. If HN is considered social media, then Usenet needs to be considered social media. In which case decentralized social media already had a good run, but users eventually came to prefer centralized systems.