Early product releases often go into beta while lacking simple features like account deletion, content moderation tools, referral features, and many others. In lieu of these features, the product might simply offer a way to contact the developers who will handle it manually for you, using tools they have in the back end. Once they get enough inquiries, eventually the feature gets built out and users can do it themselves. In the meantime, a Flintstoned product launch lets the developers get the app out into the market and get feedback from customers.