Intellectual Property Law
Intellectual Property Law Questions? Ask a Lawyer
hello. yes you can legally do that, there is nothing inherently illegal about such a program (although it would be very rare/unique). It is voluntary so if they do not want to send you their name etc. then they don't have to. however, from a practical standpoint this seems like a very burdensome effort, but that's up to you.
let me know if you need clarification, thanks