the.com/wearer

The person who finds out if your design idea was actually a good idea.

means Someone who has a piece of clothing or equipment on their body, putting a design's comfort and function to the real-world test.

from Simple and sturdy: from Old English 'werian', meaning to wear or carry on the body, with roots stretching back to a very old Germanic verb for carrying or defending oneself with something. Add the agent suffix '-er' — the same ending that turns bake into baker — and you get 'wearer': not the designer, not the seller, but the one actually walking around in the thing.

legal sense
Used in patents to mean the human the invention touches.
fashion vs function
Designers worship the look, wearers worship the pockets.
etymology
From wear, Old English werian, to carry on the body.
silent critic
Never reviews the product, just quietly stops buying it.
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