Typically, Bitcoin cultists have dismissed the latest which demonstrates that Bitcoin has a fundamental vulnerability. Some salient facts pertinent to this issue largely ignored by this community of rampant speculators.
1. Despite what Bitcoin cultists claim, Bitcoin does have a central authority. Specifically, the group responsible for the most popular Bitcoin client wields as much power over Bitcoin as any central bank does over state fiat.
No, that's flat out wrong. Not only is the group that works on the standard client very large, and very broad, and very active (not to mention under lots of scrutiny) the miners also have a strong say in what bitcoin looks like. Even if the group that makes the popular client were tyrannical in some sense, the miners (the REAL backbone of Bitcoin) can decide themselves if they support new features, new clients, etc... If the miners and developers somehow 'collude' on features, then what you get is a BETTER BITCOIN. Because what your saying is that the people who actively build bitcoin agree with the people who actively run bitcoin, which is exactly what all this is anyway. It's a consensus system. Which means it runs perfectly fine.
2. A fork of the most popular client with what we shall call a war miner module (extra credit for spotting the gaming reference) would quickly become popular with all those people who invested in ASIC hardware, but ended up out of pocket as mining difficulty moved ahead of them.
Nope. There are tens of thousands, if not now, soon, hundreds of thousands of miners out there. The only thing that coordinates them now is the pools that they mine one. Miners have no interest in a fork, it's bad for bitcoin, bad for business. A Forked bitcoin with the 'loser asic miners' has no value. You might as well jump on my bandwagon to Monetize and Mine Bitcoin Testnet. Because there already IS a 'bitcoin2' and it's right inside the standard bitcoin client. If you're pissed the difficulty has surpassed your device and still want to mine bitcoin, just hop on the test net. Forks run by the already out-hashes ASICS would be instantly orphaned.
3. There seems to be a foolish assumption that nobody would bother exploiting this systemic flaw in Bitcoin because to do so would destroy the very thing they would be investing in exploiting. Alas gentlemen, you shall be hoist be your own petard. For all the talk of a brave new world of cryptocurrency, free from the ruinous short-termism of state fiat, what you have is a community whose engagement with Bitcoin is entirely speculative in nature. It's all about riding the bubble and cashing out before it explodes, very few people seem truly committed to Bitcoin as a currency, rather a means to acquire more of the sate fiat they claim to detest. You've collectively recreated the very worst excesses of the Wall St. Mafia, and as a consequence there are plenty in the Bitcoin community who will seek to exploit this core vulnerability for profit.
It's not a flaw, and it's not currently exploitable. You are probably not watching the development email list, but not only are they talking about ways to get around this, but the issue is academic at best. The mining ecosystem is rather well understood to the miners There aren't a bunch of "dark horses" out there. The same people with the hash power to pull something like this off are also the same people working to find solutions to it. There's no money to be made in destroying your own money.