Wired gets strung up here regularly for sensationalization.
While evidential, neither of your sources can be considered _factual_. In fact, the first four references of your wikipedia article all point to... that article in Wired, which doesn't attribute its sources at all.
So you've got one possible source- not the definition of a public story.
Mind you, I have no stake in this matter. I don't care for Magic or Bitcoins. I'm just here as a philosopher.
How and why did you create Mt. Gox?
At that point there wasn’t a good way to buy and sell Bitcoins and I wanted to buy some. So, as a side project, I made Mt. Gox and bought my first Bitcoins there. As the company started to take off, I sold it.
Note what is completely unmentioned there: any evidence that Mt. Gox was made for any reason other than Bitcoins. If Mt Gox was an operating Magic card exchange, isn't that a really strange way to describe its history?It's ridiculous to even begin to think that there's any similarities between the sites outside of the domain name and it's owner.
If you don't agree, then don't agree, I don't care.
And I still disagree, plenty of the site could have been re-used because if the new code uses the same core frameworks, a home-brew persistence framework for example, it could have the same core issues; issues that may not have mattered on a trading card site but matter greatly when money is involved, rounding problems, lack of transactions, stupid architectural choices like MongoDb, who knows.
If you don't agree, I don't care. I've been doing this for 15 years, I trust my own expertise far more than some disagreeable person on the internet.
We cannot know what was reused from what, absent new evidence, as there is no public example of an actual MtG trading card site that I can find anywhere, just a quick note saying that the idea was "patent pending" and that one might someday be found there until a Bitcoin exchange popped up.
I would be quite interested if anyone has new evidence. The record, so far, is a bit thin. Perhaps the Jed McCaleb has a Github or other public repository containing items of interest?
Before the Wired article, the Wiki article implies that the site was an operating Magic card exchange, but the citation is a link to the Internet Archive's copy of the stub page, with absolutely nothing there to substantiate the idea that it was actually an online exchange. The Wired article appeared later and is unsourced, but could plausibly have taken the Wiki article's unsupported statement at face value. Then just the other day (February 9) the Wiki page was edited by a user named Agyle to use the Wired article instead of the Wayback Machine reference.
"But then McCaleb turned [Mt. Gox] into a website where people could exchange cash for bitcoins, a digital currency that had only just found its way onto the internet, and just as the exchange started to take off, he sold it to Karpeles."
Are you saying McCaleb started with a fresh codebase and just hosted it on the same domain? I haven't seen any evidence to support that. But I also don't understand what support for your claims you think that archive.org link provides. Just that a card exchange was hosted there for several years?
Journalists seem fundamentally incapable of writing the truth. You can see that it's not a "fact" by simply inspecting the internet archive history of the site. It was never a functioning card exchange.
And none of their problems really seem to follow from "having been a card exchange". Shitty security isn't even unheard of from proper banks (bank of America session overlap anyone?), and the current issue has to do with their custom bitcoin wallet which is definitely unrelated.
http://www.wired.com/wiredenterprise/2013/11/mtgox/
http://en.wikipedia.org/wiki/Mt.Gox
So I'll take facts over your random unfounded objections any day.