[oliwarner]

That isn't how the world deals with risk.

If you think something your client wants could explode into a liability, you can turn them away or you can just make sure their bill covers your exposure.

If it's a legally questionable service, there's likely to be plenty of abuse contact, or they're going to be a big target of crime, they're going to end up paying more. This is the same reason why some industries (eg porn sites) have always paid more for card processing.