Just stay away from the street scene and use your head when you make appointments with high end escorts, which is something you should be doing anyway with Bill C36 or with no Bill C36. The chances are exponentially greater that you will show up to an appointment, and the girl greeting you is not the girl in the photos, or she is playing some scam like "I have to pay the driver", or she lifts money from your wallet when you aren't looking. These are the kind of things that you should be genuinely concerned about if you are hobbying.
The crown attorney is not going to prosecute a case that they have no hope in winning (which would be the case if they had no evidence). If the cops kept laying charges with no evidence the crown attorneys would get angry at the police and tell them to stop wasting their time.
In order for the police to catch you OFF the street scene they would have to make fake ads on the internet and either lure you to a hotel room or a home or they would show up at your doorstep and arrest you. Now this kind of thing does happen in the United States but you have to remember the politics in that country are very different with the christian right having massive political power and therefore the cops act accordingly by cracking down on all forms of prostitution to keep these people happy. In Canada, prostitution is viewed by the majority of the population as a harmless vice, unless it is happening at the street level. The base of conservative support largely comes from right wing religious people, and the passing of bill C 36 was designed to keep them happy so that they will get their votes in the next election. The cops already know that this is a politically controversial issue and therefore they will only crack down on the street scene because this is where they get most of the prostitution related complaints. Bill C36 is just a feelgood law and as long as you stay away from the street, which you should be doing anyway, you will be safe.
Now this is not to say that the cops don't go online and set people up because they do. But when they do this they are generally trying to catch pedophiles or other real criminals. The police even admit that they don't have the resources to do that kind of policing properly. If population found out that valuable resources were being taken away from catching child predators and other fraudsters (real criminals) in order to catch men paying for sex where both parties are mutually consenting and hidden away from public view in hotels and homes, the political heat they would face would be enormous.