“Anonymous” is often implemented as a missing name field. That is a start, but it is not a design method. A survey can omit a name and still connect an answer to an account, invitation token, IP address, cookie, device identifier, tiny team, or revealing free-text detail.
Source: [Dev.to](https://dev.to/billy6go/anonymous-survey-design-starts-with-a-data-inventory-not-a-checkbox-43dj)