It differs if the site wants to impose KYC to verify the identity of customers and conduct sales and purchases related to banks and some legal procedures and a site that imposes it to obtain more profits because of the sale of those identities in the black market.
This trick will work in small sites because it does not strictly verify identity and does not cooperate with platforms to ensure that everything is subject to legal compliance.

Stay away from these sites as they do not have enough budget to develop these programs.