@ Kévin 14:20 Sep 13, 2011
In answer to Kévin's comment in his response to my peer comment, yes, I think 'usability' might have been a better choice of word, although it is the sort of 'made-up' word that a lot of people — myself included — tend to shy away from using.
However, I don't really think a question to the client is necessary here, despite the awkward construction and poor lexical choice, the meaning is still clear: I feel sure they were just eager to warn people that the site wouldn't work properly without cookies enabled, only they wanted to word it in such a way that it didn't sound as if it was a shortcoming of the site! "It's your own fault if you can't make the most of the clever facilities our site offers you" | 
The translation workplace 
peer agreement (net): +1
