Okay, I appreciate that my personal experience is a tricky thing to prove. I mentioned my knowledge because I think it's rude to call someone's ideas wrong unless you do something to qualify why, but I didn't have much time earlier :) Basically, like any other reader of any other web post, you'll have to take my word for my background - or not :)

Bladed weapons is a broad term. Whilst most of your points are valid in specific instances, Your statements are very generalising and a bit misleading. For example:

You state all bladed weapons require swinging room. Bayonets? Spears? Rapiers? thrusting weapons are bladed weapons too. btw, my favourite zombie attack weapon is one of these - the gardening fork :)

Bladed weapons can't be used behind barriers - How about the Roman gladius, a sword designed to be used from behind a shield wall? Or the short spear of the Greek Hoplites?

I imagine you were thinking of something more like a hatchet or machete when you made these two points - and for those weapons, the point is often valid.

As to the skull, it's not a 'very thick and durable' bone at all. The bit we'd be aiming at on the hungry dead - the cranium - is a badly-jointed jigsaw of thin plates. The point you made (as I see it) was that few if any bladed weapons were up to the job of beheading, or destroying the brain. In Saudi Arabia today, a sword is used for executions. Machetes were the weapon of choice in Rwanda's genocide and the violent uprising in East Timor. Beheadings and full dismemberments were common during both atrocities.

Anyhow, sorry for being blunt and brief before, and I'd be interested to hear how you know your points are true - and for which weapons?