I think you've spammed this enough to get your point across. You're looking like a troll with an axe to grind now.
I'm not sure why you keep saying "old timers" know this could be a scam. I'm an "old timer". I don't see their angle. Sure I have my doubts about how they could deliver, and they seem to be a bit inept at things and generally secretive, but how will they scam? They are only accepting escrow. They are much more generous than other pre-orders about refunds (and your funds will be sitting in escrow, so the escrow holders will be the ones following the terms).
They are charging 10% more if you choose to only put 30% in escrow now, which makes sense. You're electing to tie up 30% instead of 100% of your funds for a few months, so you pay a small premium.
Yes, I have an order with them. Does that mean I'm not a bit on edge? No, but I don't see how anything can go wrong either. As for some people saying they could send people rocks, I don't see John K releasing escrow if a bunch of people report they got rocks (their page also gives you time to test the unit after receiving before escrow is released to them).