Hate to break it to you, but anything can legally be taken away from you by the justice system. And fighting the government can put you in prison, too.
It's just LARPing.
Yet the government went out its way to ban bearer shares, bearer bonds, numbered anonymous bank accounts, large denomination currency, anonymous companies, and all the other methods of anonymous banking.
Seems they were having trouble "taking it away by the justice system."
For the same reason government across the world have pressured or banned exchangers of monero.
> It's just LARPing.
Usually LARPers are conscious that they don't have magic or any sword skills. I'm pretty sure the person who you respond too really think what he wrote.