After reading the topic, I made the following conclusions. We shouldn't send fake documents, as we are breaking the law in this way. But the KYC check itself is also illegal, as it violates the basic principle of the crypto space - anonymity. But as a result, both things still happen.
Perhaps, the golden middle would be - if you're personally against giving out your personal info then find an anonymous service.
This way you won't break the law, and crypto services are not legal anyway no matter which one you'll use.