Some time now we see a arms race between DRM software and DRM "remover". Of course, also Apple is in it with iTunes, but hey, getting again around their DRM was very fast.
I like this kind of software, you still have to buy the songs (which is fine with me, prices at least at iTunes seem to be OK), but after that you can get rid of the DRM stuff - and (for me) play it on your MP3 player or even more important in Linux.
In my opinion just downloading songs from illegal sites is bad, but this kind of software just offers you again fair use for both sides.