I love this comment, thanks for writing it. There is a DEFINITELY a theory and a method to design. I would never say otherwise, and you're absolutely right.

The second part of your comment was precisely what I was getting at: people who hijack "UX" or the "design perspective" as a way of justifying their preferences without any further discussion.

I literally saw this happen the day I wrote this post. They offered no other explanation than "The design perspective says..."

If you're working with a grid, you can certainly discuss how something fits or doesn't fit, or works within that grid. Colours have meaning, hierarchy is crucial in aesthetics and usability, and typography is a whole discipline of its own. I wholeheartedly agree.

If someone knew all of that and used it to justify their choices, they wouldn't need to co-opt the "design perspective" as their argument of choice.

It's when someone says that "Blue is the best colour for links" or "the 960 grid is the most usable" or "sans serif is the most readable" — from a design perspective — that we have a problem.

Thanks again.