@transicorn 
@crackhappy Unless the instance has legal presence in that jurisdiction the only thing they need to do is show it a big 🖕
No need to restrict users under malicious regimes you're not subject to from accessing your service.
If you have a fediverse account, you can quote this note from your own instance. Search https://hachyderm.io/users/dalias/statuses/116089580382611197 on your instance and quote it. (Note that quoting is not supported in Mastodon.)