[patio11]

Is there any risk or downside to this?

A number of people with USD on deposit at Mt. Gox, who correctly understood Bitcoin's price to be unsustainably high and were waiting for the correction, are now 3+ years into waiting for a Japanese bankruptcy court to pay out their claims. They are, in the Bitcoin economy, the lucky ones -- the more common thing which happens when exchanges fail (which happens in 20%+ of exchange-years) is for all money (and things of more dubious value) to be lost.

This is different than in more traditional markets, where custody of assets is distinct from being an exchange (you don't wire money to the NYSE to trade there), custodians/brokers are regulated, individual accountholders are insured, and you generally don't have to have $2000 cash on deposit and locked up to keep an order for 1000 of Google at $2 on the books.

I feel like I have to say that professionals very much do have orders far outside the usual trading ranges for various things in the expectation that a fill against that order usually represents a quickly profitable mistake by a counterparty. A major portion of the reason that this is something professionals do and amateurs largely don't is because there do exist cases where orders get filled far away from the market and one's counterparty praises all the spirits of capitalism that someone else was being inattentive to the fundamentals at a time where being inattentive to the fundamentals is a poor decision.