I think this kind of question is valid - it is valid for newcomers to ask frequently - it is valid because if y'all haven't noticed, Living La Vida Low Carb-esque gurus have adopted the Paleo diet as a bit of a new fangled low carb regimen.
Even those of us who've been at this type of thing for a while continue to "evolve" our own intakes of macros as activity, seasons, stresses and fashion changes.
So, Stefan, the Perfect Health Diet recommends something to the effect of about 600 grams calories of carbs to feed your brain - that's like 200 150 grams or so? Many here are adhering to those recommendations. Tinker.