I think the "untrustworthy" meaning is also relevant here. One of the reasons to use this hand-drawn look is so that people won't trust the drawings. Balsamiq

I think the "untrustworthy" meaning is also relevant here. One of the reasons to use this hand-drawn look is so that people won't trust the drawings. Balsamiq has a good description of this philosophy on their "What are Wireframes?" page. Here are the summary points: 1. It makes it clear that this is not the final design. 2. It conveys that "this is all up for discussion". 3. It makes it clear that no code has been written yet. In other words, don't trust these drawings! They are not finished product, or any kind of product. There's a longer explanation of each of these points on the page (scroll down to "Why Do These Wireframes Look the Way They Do?"). Recommended reading for anyone considering this sketchy style of drawing: https://balsamiq.com/learn/resources/articles/what-are-wireframes/ https://balsamiq.com/learn/resources/articles/what-are-wiref...