Black markets are fine. Kill one, and 5 will rise to replace it. The more restrictive our government becomes, the more black markets will thrive. That is a law of nature.
That article is bullshit. Everyone ordering black market products knows the risk. You take a risk with every purchase, but the odds of getting your stuff and the transaction going smoothly are probably better than the odds of not getting fucked by a car dealer during a purchase.
I have made more than 20 orders from black markets, and every transaction was successful. This is the case with everyone I know who has made black market orders.