LOL, no.  All they can do in metals is naked short it down to cost of production.  As I've explained numerous times before, you can actually destroy Bitcoin with shorts since there is no real cost of production floor.  There is only a temporary, synthetic floor due to current mining hash rate.  If you just lump on some bitcoin shorts and constantly drop it below cost of production, all the miners (like KNC) will be forced to turn off, dropping it's synthetic price floor even lower.

Even if cost of production was once $10,000 per coin, this economic attack by shorts can drop the price floor down to barely anything.  There's no reason for anyone to buy your older $10,000 cost of production coins when they can now just mine new ones off the never ending block reward (from transaction fees), so the current synthetic price floor crashing also destroys value of all previously mined coins.  If the post-attack price floor is $100, that is now the value of your horded stash.

Bitcoin is far more vulnerable to economic warfare than metals are, and anyone who denies it is 100% lying.  This is why you need to be a complete fool if you haven't figured out the only way the bitcoin price can go up is if the government specifically sanctions to allow it, because it's ridiculously easy to kill it via shorts from the ESF.  The government (aka bankers) are allowing it to go up because they want you to buy this imaginary asset and not gold or silver.  You are being herded like dumb cattle out of real wealth and into imaginary wealth that can vaporize at any second.