I don't think, not should ask for KYC and AML.
Because most of the crypto currency,
No boundaries, no privacy, no delay, no government,
And most of the crypto currency says that if you lose your private key, they are not responsible.
If the currency of your blockchain is stolen, most of them are not responsible.
Since the crypto currency only recognizes the blockchain,
No supervisory unit, no compensation unit, no responsible unit,
But they will KYC and AML,
Yes or Not too arrogant?
It’s like the official can set fire,
but people can't set light.

If one day?
The government of a certain country says that it does not recognize a certain crypto currency.
Request that the crypto currency exchange located in the country be closed,
As a result, it is closed directly,
What to do ?

Many websites,
Suddenly, it is forbidden to log in or prohibit a person from a certain country from logging in.
But before it was not banned,
those people deposit many crypto currency and went in.
But after being banned,
They can't log in,
So those crypto currency = is engulfed.