We compile summary statistics such as the number of users and the countries they come from, which we use when applying for funding to support Distance. So, by filling in the form as accurately as possible, you are indirectly helping to fund the software. Apart from their use in obtaining funds for Distance, we think the results are interesting and hope you do too!
If we were to find a truly critical bug in Distance, we would consider emailing everyone who had downloaded the software to tell them how to download a fixed version. However, we value your privacy and have yet to resort to this option.