In criminal cases. In civil suits someone always loses, so an average person cannot win more than 50% of cases.

DNS over HTTPS and use a DNS located in another country - problem solved

Again, if you properly separate your identities, than the answer to both questions is simply impossible, since you are not the one figuring on the bill. The only thing they can achieve is link you to some IP behind 2 VPNs and 5 proxies, good luck to them if they want to dig through all that while avoiding you noticing and simply deleting all data from one of them making you completely separated from any illegal activity.

I can host an instance. I don’t care about “raiding”. If you get raided, it means you have not properly separated your online and real identities.

Not all of Europe. In most parts (especially Eastern Europe) the most you will get is a slap on the wrist if you are really really unlucky. And decades in prison aren’t a thing anywhere for simply sharing links to pirated content.