The call is coming from inside the house, the majority of DDoS-for-hire services are hiding behind Cloudflare.
It's very common for reputable hosting company's to KYC/KYB.
It's good for them & also good for their legit customers.
Where government identified categories like smoking, alcohol, pornography - are defined by governments to be potentially harmful to its citizens. So as a hosting company, you're in a weird spot because it's not clear if you can/cannot do business with those types of companies.