The survey, which asks about what hardware and software you're using, and what you intend to upgrade to in the near future, is designed "to build an accurate picture of who the current RISC OS users are and what they are expecting from RISC OS in the future".
The form does require both a valid name and email address, but "replies will not be passed on to any third parties, so please fill in your name and email details to enable us to correlate our records. You will not be contacted by anyone else other than RISCOS Ltd as a result of completing the survey." The web page further stresses that the individual details will not be passed to any third party.
Link: RISCOS Ltd survey