I thought of doing it for a while now, but I'm reluctant. See contrary to popular belief I'm a rather nice guy and I don't enjoy hurting people's feelings. On the other hand I've been around long enough to where I could literally write a book on what not to do to a cab and use byoac's project examples page to illustrate my points. 
Well, I think there would be two ways you could really convey the message. First, you could use real examples and throw in some postives with the negatives (using a more civil tone to convey why you wouldn't want to do what the example did). Conversely, you could be brutally honest about the biggest mistakes made by cab builders but not mention any names.
Honestly, the "do's" in making your own arcade cab outweigh the "don'ts" in this board, which is fine. However, I think a "what not to do" article could be really helpful without coming off as condescending or preachy and without being hurtful to others. Not to say I don't enjoy the Crapmame article (it's one of the most hilarious things I've read in recent memory), it just may be lost of some budding cab builders who are turned off by foul language or sarcastic humor (though,
the bottom of this page should be required reading).
I was actually going to write a little "Tips" section on my (under construction) project page outlining a couple of uncontested "don'ts", but I felt perhaps as I'm only on one cabinet, I may be a little unqualified for such tasks. This idea stemmed (before I read the Crapmame sight) when clicking through examples I noticed a lot of people (a) got 'cute' with their button layout (three rows of twos, random scattering, and mirrored P1/P2 controls) (b) think that a cabinet should double as a sticker book and (c) go out of their way to build a cabinet and then, counterproductively, make it look less like an arcade cabinet with an overabundance of 'feature creep'.
Finally, Howard, if you do do this and want some web space, I'd be happy to donate some.