Again I'll write the same question. So what?
Are you actually saying because someone gives me a pipe I'm more likely to smoke crack?
They are exchanging used pipes for new ones. The people already have the means to do the drugs and the drugs, all they are attempting to do is make it a little safer. Like I wrote before, if you don't like it then don't donate to their cause. Personally I believe this make a little more sense than "Just say no." Of course "just say no" made no sense whatsoever.