This will be very interesting (but likely not). People have tried to hide assets from tax authorities, spouses, creditors, etc for thousands of years.

I'm a little surprised (or not) at the naivete of the cryptocurrency community "It's digital" "It's anonymous" "It can't be seized or controlled by the government". Sure, as though these extremely experienced professionals and very powerful institutions are going to read a tweet from one of the crypto maxis and just throw their hands up and say "It's on the internet, I guess there's nothing we can do about it".

These groups are very, very good at what they do. They've seen it all and even if it's XMR (or whatever) with the proper motivation they will find it (and you). Very, very few people and organizations have the full skill set required to evade these authorities.