> Just as a thought experiment: if a DAO was created by 7 random people on the internet from Dubai, Latvia, Colombia, Australia, Singapore, Switzerland, and Taiwan, how exactly would you go about bringing a lawsuit against them from the United States? And how would you target them on a "jointly and severally liable" basis?

Sue the Australian in the Australian court--common law jurisdiction, so it's going to be quite similar to US laws, and personal jurisdiction over them in Australia isn't going to be hard to establish. I get the judgement against them for the full amount, and it's their problem to get the other 6 people to pony up their share. That's what "jointly and severally liable" means: I only need to go after one person for any claims I have; it's their problem to get the pain distributed.