I never did get why people said that the Demo 8 (2005-2006) wasn’t a DH bike. I had one for two years and it never seemed to hold me back. I was ‘competitive’ at the Masters level and maybe if I was a pro-elite rider I’d feel the difference, but at this level, i.e. anyone on STW, I can’t see what it is about the Demo 8 that is so wrong. I regret selling mine. The bike I replaced it with is utterly sublime, but costs twice as much and probably isn’t any faster.
Of course, that’s not to say that people won’t ‘get on’ with the Demo 8 or any bike for that matter. It comes down to personal preference but that’s a long way from righting a bike off wholesale as not being more than capable of riding DH.