Re: 'This does not mean we should condone the practice ...'
Since when are we in the business of condoning or condemning on this board?
I imagine that he knows that it's unlawful (illegal), but that doesn't prevent 100 pop-ups a day hawking everything from Viagra to Ambien (which truly IS a controlled substance ... Viagra is a prescription med, but not a "controlled substance").
My two-cents, unasked for, I know: full disclosure plus some level of assumed intelligence allows a consenting adult to make an informed (if unwise) decision. Witholding information only removes a vital part of that equation.