As far as I can tell, the only reason Mastodon became so popular while GNU social / diaspora* / others throughout the last decade didn't is because so many Japanese pixiv artists got fed up with twitter, and Mastodon's UI is a complete tweetdeck clone. I mean, the privacy-conscious userbase has been here since forever, but they were never enough to get a social network off the ground by themselves...
えっちぃのが大好きでちゅ
主に観賞垢として使ってまちゅ
フォローはお気軽にどうぞでちゅ