I don't really follow this stuff, but I've been hearing a lot of positive news about BFL recently, so I tend to think that it's probably not a scam. I'll reevaluate this if they haven't produced anything concrete by their current deadline.
While I might refuse their advertising, giving them a scammer tag is more complicated. I'm not sure what obligations and deadlines preordering implies. They'd probably have to stop all contact for several months for me to give them a scammer tag. I recommend against preordering anything from anyone in the Bitcoin community.
This is a reasonable policy, for what my opinion's worth.
I don't have much faith in BFL, but until there is evidence of criminal wrongdoing, a scammer tag is premature.