I'm not sure about that. When coding, like other comments about writing, I can feel much more relaxed and ultimately more creative when I have a couple of drinks during the process. That doesn't mean that I have "no plan, no structure, just throwing ideas willy-nilly.". Maybe that's what I would do if I was falling over, black out drunk - but I don't think that's the spirit of what we're talking about here - or at least it's not the way I take it. To the contrary, my plans and structures can often come together more easily in the relaxed, somewhat inebriated state that a little alcohol provides.