Quoting: Dark Patterns: inside the interfaces designed to trick you

By Harry Brignull

http://www.theverge.com/2013/8/29/4640308/dark-patterns-insi...

These carefully crafted elements are built to misdirect and confuse

When Apple released iOS 6, one of the few new features not enthusiastically promoted by the company was Identifier for Advertisers (IDFA) ad tracking. It assigned each device a unique identifier used to track browsing activity, information advertisers used to target ads. Even though IDFA is anonymous, it's still unsettling to people who worry about privacy.

Fortunately, Apple included a way to disable the feature. You won't find it in the privacy settings, however. Instead, you have to go through a series of obscure options in the general settings menu. Now, "General” is a crappy name for a menu item. It’s mainly a bucket of miscellaneous stuff that they didn’t know what to do with. In the "General" menu, select "About." Down at the bottom of this menu, next to the terms of service and license items, there's a menu item listed as "Advertising."

If you haven't been here before, the only option in the advertising menu, "Limit Ad Tracking" is probably selected "Off."

But let's take a closer look at the way this is worded. It doesn’t say “Ad Tracking – Off” it says “Limit Ad Tracking – Off”. So it’s a double negative. It’s not being limited, so when this switch is off, ad tracking is actually on.

Off means on!

This is actually a great example of what I define as a "dark pattern."

What is a dark pattern?

A dark pattern is a user interface carefully crafted to trick users into doing things they might not otherwise do, such as buying insurance with their purchase or signing up for recurring bills. Normally when you think of “bad design,” you think of the creator as being sloppy or lazy — but without ill intent. Dark patterns, on the other hand, are not mistakes. They're carefully crafted with a solid understanding of human psychology, and they do not have the user’s interests in mind.

The thing about dark patterns is that you design them from the exact same rulebooks that we use to enhance usability...

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