Things like this happen all the time, at every level - Federal, State/Province/ and Municipal. Not everything LE does makes the news. They don't need to raid EROS to figure out at the border you're paying for sex. All this fear mongering for nothing. If you've hobbied regularly for more than a year, or you're an SP who has routinely toured in the US to this point, odds are DHS already has enough information to deny you entry. By the time the industry started to smarten itself up, it was already too late.
Besides, if you hobby and you have 'a lot' to lose by being 'found out' either by LE, family, friends, or your employer, you probably shouldn't be hobbying in the first place. And if you do anyway and shit goes sideways, it's on you and no one else.