I went to purchase more bitcoin and before letting me buy, they wanted me to answer some questions. This has never happened before and I'm a little hesitant now. They say it's only to protect my account, but I trust no one.
I don't use MoonPay but every so often or when I transact a lot more than usual on an exchange they ask me these type of questions. It's standard KYC or Know Your Customer. Happens even on an exchange I have used for a decade especially when NFT's were hot and I was taking profits.