What KYC actually is, and where it came from.
KYC — Know Your Customer — is a set of identity-verification procedures originally codified in financial-services anti-money-laundering regulation. The canonical implementation collects four things: legal name, residential address, a government-issued identity document (passport or national ID), and evidence the document belongs to the person submitting it (the now-ubiquitous "selfie with ID"). Sometimes a utility bill or bank statement adds proof of address. The financial-services obligation is real, the documentation is well-defined, and the regulators that enforce it (FinCEN in the US, the FCA in the UK, BaFin in Germany, FINMA in Switzerland, FATF globally) audit compliance regularly.
What is less well-defined is how KYC migrated from financial services into adjacent categories. Hosting is one of those. There is no statute in Sweden, Finland, Norway or Iceland that requires a hosting company to KYC its customers. The practice spread by convention — mainly because hosts that accept credit cards inherit the card processor's fraud-prevention culture, and because corporate procurement expects to be asked. A small slice of the hosting market has consciously stepped out of that convention. That slice is what "no-KYC hosting" refers to.
The distinction matters because the marketing word "anonymous" can refer to several different layers, and KYC removal is only one of them. A perfectly KYC-free host that does not accept cryptocurrency, refuses Tor, and shares your IP address with anyone who asks, is still leaking on the other two layers. Real privacy hosting is a stack; KYC removal is one element.
