Based on the headline, this looks like an interesting story: “Mac vs. PC: The stereotypes may be true.” But there is a problem:

An unscientific survey by Hunch, a site that makes recommendations based on detailed user preferences, found that Mac users tend to be younger, more liberal, more fashion-conscious and more likely to live in cities than people who prefer PCs.

While the first part of this paragraph is treated as a clause that barely affects the rest of the text, it really is the key to the story. Hunch’s survey respondents identify as 52% PC users and 25% Mac users with 23% percent identifying with neither (and what do we do this category?). This compares to PC vs. Mac world market share of 89% to 11%. This is evidence that the online sample doesn’t quite match up with what computer users are actually buying. Voluntary web surveys are difficult to work with for this reason: even if there are a lot of respondents, we don’t know whether these respondents are representative of larger populations.

Perhaps CNN does cover themselves. The headline does suggest that these stereotypes “may” be correct and the second paragraph suggests the stereotypes may contain “some truth.” But a more cynical take regarding both CNN and Hunch is that they simply want more web visits from devoted PC or Mac defenders. Perhaps the fact that all of this is based on an unscientific survey is less important than driving visitors to one’s site and asking people to comment at the bottom of both stories.