pettter@Floppy Signal is a US organisation with servers in the US, operating under US jurisdiction. They themselves claim to save a _lot_ less stuff than most alternative services though, and in most cases they are not going to be the place where subversion hits, but rather Google/Apple (depending on if your phone runs iOS/Android).
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.