If I'd have to guess what Nielsen thinks about this threat, it would be that what the -really- funny thing is, in a majority of cases it's a matter of One-Eye in the Land of the Blind.…

[web design company outsourced production of web site with default link colors in the specs, clueless project manager calls with complaint about site] "On the main page, two links are bugged: they are purple instead of blue like the other links" …

Sometimes clueless clients by accident get it just right: [client after seeing a competitor site with a 'splash' page with 'flash' on it] "I want a crash page"…