The advantage of Mastodon is that people do have the power to moderate and take things down. But only on instances they are administrators off. So while I can

The advantage of Mastodon is that people do have the power to moderate and take things down. But only on instances they are administrators off. So while I can take down illegal content on my instance I can't go to the japanese instance and ask them to stop posting all those anime girls. They follow their own rules and if I don't like them I can just not allow their content on my server. If you want to follow both my server and the japanese server you'll have to find an instance that doesn't ban either of us or run your own. (Though I trust that there are a good number of lightly administrated instances that it'll be easy to find one before you're forced to run your own)