I took "you will not be bombarded with advertisements" as "we won't send you spam" because they need your email address to send the registration key.
I just tried the demo and it saves the data in a file on your hard drive.
Darrell Spice, Jr. [link|http://spiceware.org/gallery/ArtisticOverpass|Artistic Overpass]\n[link|http://www.spiceware.org/|SpiceWare] - We don't do Windows, it's too much of a chore