I went off the subject a bit but what I started to ask is why doesn't FINCEN play wack-a-mole with every exchange accepting bitcoin ransoms or extortions if they can't provide individual identification of the perps. Or is it a case that Russia won't comply with FINCEN requirements?
The reason majority of the exchanges are complying with madatory KYC is simply because they do not want to get into trouble as the authorities will mark them as aiding money laundering if they are not able to provide the necessary documents of individual wallet holders.What's the answer? Maybe break up the internet the way the EU is banning flights to Russia and Belarus while they support Alexander Lukashenko? Heck many of my missing ~11.8 btc might be in Russia if reports Vinnik had a boss there who may now have much of the MtGox stolen btc as well as btc stolen from other exchanges over the years.
So you did loose your coins during the MtGox hack and it was a disaster for everyone involved in Bitcoin during that time period and hopefully we will be able to track them down even if it takes another decade 
.