@dalias @kiwix The Digital Services Act, article 6 requires a hoster in the EU (who like social networks are classified as a information society service):
"upon obtaining such knowledge or awareness, acts expeditiously to remove or to disable access to the illegal content."
In the case of a server where they don't control individual content, removing or disabling access to that content exclusively is not possible, so removing all data is the only thing they can do.