I'd argue every small social site should run on the principal that they will be prosecuted like an illegal streaming site. You can divest yourself of liability and doxing with basic opsec.
An example: host on 1984.hosting and pay with mined or donated Monero. Only access the site through a computer specifically for that purpose, and only with Tor / Tor Browser and a Linux distro such as Qubes, Tails, or less suspiciously, Fedora Atomic. Memorize credentials if possible, if not encrypt them on drive with a strong password via a keepassxc databases. If you are hosting the site properly, you can transfer the site podman/docker container and url with databases and info intact with no effort. Make sure the computer for managing site management stuff wipes itself on every shutdown sans credential info, has secureboot, and an encrypted drive. As an admin account, only access the site through base Mullvad Browser with a VPN (ideally Mullvad) or Tor Browser on a computer of your choosing.
You can easily say the site is no longer yours and your payment information will reflect this. This has been done before. Germany can ban the site but it'll be easily discoverable through other fediverse servers, Tor, and VPNs. They would have to ban anything that uses acitivitypub, and again, even in that scenario you can use a VPN or Tor or self host a vps with the instructions above to access it normally anyways.