The second website Anne-Marie reviewed belonged to a campsite. For a campsite, the website is even more critical than for most businesses, because it is also the booking engine. She ran a mystery booking, the same process any first-time guest would follow.
Midway through the booking flow, she encountered terminology she simply did not understand. As a customer, her immediate reaction was: what does this mean? What am I supposed to fill in here?
The terms were completely natural to the campsite owner. She lives inside the business every day. She knows exactly what each field means, how the site is organized, what the categories refer to. But a guest arriving for the first time carries none of that context.
This is the Kundenbrille problem in its most direct form. When you design a process from the inside out, using the language your team uses internally, you create friction for everyone approaching from the outside. The customer is not confused because she is inattentive. She is confused because she was given no reason to understand your internal system.
At that moment, the customer has two options: push through the confusion, or abandon the booking and find a campsite whose process is clearer. Both outcomes matter. Even if she completes the booking, she has already had a friction experience before she arrives. That shapes every interaction that follows.