Comment by vmialik

Most cities have sketchy places, what is unique about Tenderloin, it has hole-in-the-wall restaurants that are actually quite good. So you go in to a place and might say in the review, this place looks sketchy, but the food is great. As apposed to purely sketchy place that you do not even want to go in to. So you do not go or leave a review. Another possibility are the massage parlors, which are truly sketchy. I learned that having the opportunity to sit in at the SF Coalition Against Human Trafficking which is a collaboration between the non profits and the government organizations in the city fighting the issue.