Most of these things are accessed through TOR networks, chains of proxies, vpn's, they are not accessible normally so whatever's the bill it won't change much because of the methods mentioned above.
Yes and no...I am aware of the 'chains' used for these purpose, but a good 'cyber man' or network man can do some grunt work and trace them...Just eliminate the sites...Sure, they will go underground, but under the ground is where they belong, IMHO...If this gambling is allowed, then why shouldn't one be able to purchase, say, synthetic morphine and other drugs freely on the net?...Both are addictive and suck up money, not even mentioning moral issues...Hey, if anything goes, anything goes...Is this the direction we wish to move in, this is the question.