Amazon AutoRip's unexpected benefits

Amazon launched AutoRip, which provides you with automatic MP3 versions of albums that you bought in CD form from Amazon. Not all CDs work, but for the ones that work, it will make things a little easier. Doesn't sound very exciting, right? Well, I went to check today what CDs were auto-ripped for me (well, all my CDs are already in MP3 format, so I was wondering what would happen with those) and it added 4 CDs to my collection. All 4 actually were CDs that I bought for other people! Thanks, Amazon (well, maybe I should thank them more if I really wanted those songs...)!