A collective term for deceptive UI/UX designs that guide users into taking unintended actions. Common examples include overly complex cancellation procedures, confusing button placement, and hidden additional charges.
Common Dark Pattern Tactics
There are several typical dark patterns. The "roach motel" is a design where signing up is easy but canceling is extremely difficult. You can register with one click, but cancellation requires a phone call or navigating through multiple pages. This is especially common in subscription services.
"Hidden costs" are another frequently encountered dark pattern. You add a product to your cart and proceed to checkout, only to find service fees and handling charges suddenly added. A case in point is when a "small order fee of 150 yen" is added just before confirming a food delivery order. You might not have ordered if the total had been shown from the start, but the effort invested so far (sunk cost) makes you hesitate to cancel.
How to Protect Yourself from Dark Patterns
The countermeasure against dark patterns is to develop the habit of always checking the total amount before payment. Especially with food delivery, where delivery fees, service charges, and small order fees are added on top of the product price, the final payment can easily exceed 1.5 times the product price.
It's also effective to check the cancellation process before signing up for a subscription. If the cancellation procedure is hard to find on the official website, that itself is a sign of a dark pattern. In Japan, the 2023 amendment to the Act on Specified Commercial Transactions mandated clearer cancellation procedures for recurring purchases, but gray-area tactics still abound. If something feels suspicious, it's worth consulting the Consumer Affairs Agency guidelines.
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