I don't understand the point - are you suggesting that he earlier on leaked the fact that he had lots of crypto and faked losing it to no longer be a target? If so he seems to be posting from a throwaway account which defeats the purpose.
perhaps he can provably point to it in the future if the government comes knocking. mainly i am remembering the guy in the uk that made a big show of looking for his old hard drive in a landfill, my immediate suspicion was that it was a ruse.
It would be good way to avoid taxes, as you can write it as a loss and then go enjoy your BTC stash to some other country tax-free.
The problem is though that the BTC will still be traced to you...
chaumian coinjoin, atomic swap for monero or zcash, or even just cashing out off the books