[VBprogrammer]

To be fair; non-functional requirements as a separate entity are pretty much wank.

If you need a line in a document to tell you that exposing privileged information to the outside world is a bad idea, or that you should make sure the solution you are designing has a reasonable chance of servicing the expected load then you probably shouldn't be a developer.

The last time I seen explicit non-functional requirements the had something like "the solution should have a 99.99% uptime." I realised that our down time for releases (old school I know) was more than that and promptly ignored them.