In reply to Andy Hardy:
Thanks for the suggestion.
On the face of it this is a good idea. But only until you give it more thought.
In your example pictures you've measured your foot at the broadest and longest points. This doesn't tell you much (anything?) about how you'll fit any particular shoe.
Since feet are so irregularly shaped, you might have any combination of dimensions elsewhere on the foot: the forefoot could be comparatively wide, or quite narrow; the heel might be broad or narrow; you could have a very long big toe, or several toes more even in length. A foot could be relatively square shaped at the toe, biased towards the big toe (like yours) or with a longer second toe. Different volumes? Bunions? High arches, or flat? It probably goes on.
Which of these dimensions should we provide - assuming these are even available from the manufacturer? If we offered just the max width and max length, as you seem to suggest, I'm certain that would be next to useless for potential buyers.
And would we offer the same data for every different size of shoe and in both men's and women's (lower volume, generally) versions? That's a long list of numbers, of dubious merit.
As with human feet, shoe shapes vary a lot, from neutral/symmetric to radically bent and asymmetric. And any number of small variations in the rest of the shape. Telling you simply the biggest dimension for each shoe would totally miss that vital nuance.
When it comes to providing info on fit in a review, we can only practically offer very generalised guidance to key attributes such as the profile, symmetry, width and volume. These are only going to be described in approximately relative terms to other shoes on the market, and with some passing reference to how they fit the reviewer, since we're reviewing them as users.
Shoe reviewing is a difficult balance of subjective and objective, and until we develop some funky 3-D computer modelling for UKC (we're not going to do that) I think we've got the balance as good as we can.
If we've said shoe X is narrow and pointy, and you've got a wide square foot, then you would probably not pick that model to try on first (though always be open minded, you really never know til you try...)
The buyer simply can't rely on a review alone, there's leg work to do for themselves too. Shoe fitting is not (yet?) an exact science, and as Rob has said, the only way to be sure is to personally go to a shop and try a load on.