Yep. The porn stuff aside, I tell everyone to steer clear of Columbia House's music club. It's like indentured servitude! And they'll send you these questionable flyers in their promo packages, like ads for witchcraft books and "wicca". No thanks.
It is an idolatry of perversion, a cult that is just one more part of the neo-pagan new age religion that needs to expand its congregation...
I'm speaking from experience here; the secret (if there is one) is to order the minimum required cd's after the free ones and then immediately cancel. They will then offer you another 10 or 12 free cd's if you re-up. Do so and the repeat the above. Use another members' catalog so you know the numbers of your favorites (as opposed to the stamps that they offer as your choices) on your next re-up and watch your collection grow big-time. Works for me.