Could you provide some support to that statement? Since much of drug dealing went online, there has been several articles on how that activity become more safer when moved out of the street.

Just a few months ago I also read an article here in Sweden where a journalist reached out to sex workers, where the person that agreed on a interview said that they had no pimp. They did all the booking and reservations Online. While anecdotal, its enough to at least question statements like sex workers aren't safer when they can stay out of the street and do their advertisement and booking from home.