The reason this doesn't apply to Canadians has to do with cross-border transport of both finished goods and raw materials. Truckers from both Canada and the U.S. routinely cross the border to minimize transportation distance (among other things, like providing just-in-time inventory supply). Doing the whole fingerprint/photograph thing would interfere significantly with commerce and manufacturing in both countries, so that's why the exception.

The big problem is that pretty much every marketer today is stuck in the "fogey generation," completely trained and immersed in the traditional understanding of marketing that came from an industrialized model. They see SL, and other forms of online interaction no differently than they see (saw) TV, radio, newspapers and billboards - as "channels" to communicate their message, image, and brand.

With a generation of people who have grown up in a massively interconnected world, traditional marketing principles are turned on their head. A presence in SL just ain't going to cut it. Marketers are going to need to figure out how the contemporary world functions in all its interconnected complexity, and change their ways accordingly.