What would happen if:
- All startups selling mining ASICs either directly or access to them are scams.
- Almost all GBLSE assets turn out to be a Ponzi or is only proftable as one.
- Major exchanges sell fake BTC or buy BTC with fake USD.
Before some of you call the scenario ridiculous and cry FUD consider this:
Before these ASIC companies showed up it was common consensus that a bitcoin ASIC would be very far down the road and that it would cost simply too much money and resources to do it. Then BFL showed up and the opinions shifted, suddenly it was the skeptics who were on the defense. They created an army of "supporters", yet the fundamental challenges remain. A background check didn't reveal any capability of producing such technology but a history of fraud.
Almost all GBLSE assets fall into these 2 categories: Mining and Lending.
The latter one is obvious: Effective interest rates are so high that there is no competition to bank loans. Added to that everybody can contact the Islamic Bank of Bitcoin with their business model and receive a free loan.
The former isn't so simple: While mining could generally be called a sound endeavor this is only true if it really produces coins at a sufficient operating margin. With the current way these mining "bonds" are set up that is not necessarily the case. We see the result in the ridiculous difficulty these days.
The history of exchanges is not a rosy one. Every one of them had their "hacks", glitches, was shut down or abandoned. Mtgox reigns supreme over the exchange market, and they are not audited. We know very little of the internal proceedings of it, and how much access individuals have to the system. Such a scenario would almost certainly go unnoticed. If fake bitcoins are sold it would only be noticeable on a bankrun since the vast majority of them is kept on the exchange by speculators. The opposite direction is also true, only if a huge part of the fiat money is withdrawn there would be issues.
At no point we were close to such a scenatio so during any period of it's operation nothing would have been noticed. I am aware that is highly speculative assessment because it can not be proven until it is too late.