If you read the chinese newspaper today, this site is mentioned! Meaning that we all have to be very careful in the future 'cause now the cops know the sources!
Gotta agree with Luv 2 Lick. LE already knew all about this site and all the other sites, micros, MPs, agencies, indies, etc, etc. The only reason they haven't busted everyone is that they don't care. Hell, many of them are probably clients as well!
There was a Seattle strip club owner that pissed off someone a while ago and found himself a target of LE. Undercover LE infiltrated his club all the way up to lower management, installed hidden video cameras inside and outside of the club, and proceeded to document every illegal activity that was going on for a long time. The owner had no clue until the day he got raided and shut down. This kind of thing is done all the time, and Vancouver PD is probably just as good at it as Seattle. If they can accomplish this, they certainly have the ability to find out about sites like this one, and have known for a long time now.
I really don't think there is anything more to worry about now than there was before this happened. Maybe this bust happened because someone ratted them out for the 17 year old. And maybe they are just using publicity about it to send a message to others who may be offering underage girls that this crosses the line, and they will be punished.