I knew that lemmy having the issue of instance identity being tied to DNS was going to eventually bite it in the ass.

It if weren't for that, it'd be as easy as migrating the instance to a different jurisdiction. Which, speaking of, is a whack-a-mole game; what we need is to set up shop in some sort of international waters jurisdiction or something that has enough soverengity and amicability that assures say the UK can't legally threaten it anymore than they can threaten a random online-delivery donut shop in Laos.