ZOMG THIS DUDE IS AWESOME
Suppose that market panic sets around X. Unfounded news about your system overtake social media. Let's suppose that people got convinced that your CEO has absconded to a remote island with no extradition treaty, that your CFO has been embezzling money, and your CTO was buying drugs from the darknet markets and shipping them to his work address to make a Scarface-like mound of white powder on his desk.
I want him to write for Merril Lynch.
Bancor thus acts like a dynamically adjusted currency peg.
Currency pegs have been tried again and again: ask any Argentinian for details. Any time you have a central bank trying to use its reserves to buoy up a peg, you have the opportunity for gaming. You'll recall that George Soros masterfully ran the reserves of the Bank of England down, simply by knowing their strategy. In this case, everything is happening on a public blockchain, using a fixed algorithm, with full visibility, while the true price is being set elsewhere through informed buy and sell orders.
In my opinion, this is holy shit bad.
Despite Bancor's claims that they eliminate labor in price discovery, their current contract does nothing of the sort. It simply shifts the market maker labor onto arbitrageurs. It is now the arbitrageurs' job to notify the Bancor contract of the true price of an asset, and get paid a programmatic reward to do so.
"Arbitrageurs" in this case being the guys who understand how to squeeze money out of the guys who communicate in memes via risk-free exploitation of the inefficiencies of a market.
An open-source market.
A 40-lines-of-code market.
Nothing quite like giving a script kiddie a $140m incentive.
Bancor is open to front-running.
Bancor's current implementation is open to a simple front-running attack. A miner, upon seeing that someone is submitting an order to buy from Bancor, would squeeze his own buy order ahead of the user's. He would thus always get a rate from the Bancor market maker that is better than what the user gets. Every time.
Fucking hell. Found the $140m script kiddies.
Bad Math, Rounding and Lack of Testing
Bancor shortchanges its users.