Don't you understand that their site doesn't operate by moving bitcoins around? When you make a trade on the site, no fucking bitcoins change hands or change wallets or anything of the sort.
Under the assumption that it really belongs to a single user:
- If they were acquired when Bitcoins where worth 0.01, it would still had been a significant investment: $5000 USD
- If he didn't buy it and farmed it, the farming of 500,000 BTC signifies that he knows the intrinsic value of it, so he was quite dedicated on the project.
Both scenarios make very implausible that the owner would suddenly forget about their generated/purchased bitcoins, it shows interest, dedication, appreciation and/or faith for the bitcoin economy.
In the event of forgetting about it for a while, that hypothetical person wouldn't neglect that the prices increased more than 200,000% from the time he acquired/generated them.
And certainly everyone who is marginally related to bitcoins must have heard about jumping to $30 USD = 1 BTC. IF he had forgotten, that news might have reminded him that he was awesomly rich. Such news sparks interest again towards the bitcoins.
Who ever was/is the hypothetical owner, MUST HAVE KNOWN about his WEALTH.
Considering all above, the "Ignored and abandoned" argument is highly, very highly implausible.
Yes, 500,000 BTC can be obtained from thin air. In fact, more than 10 times that amount has been created from thin air. A good portion of it by people that screwed around with the project for a while and then left, never to be seen again.
You don't know a damn thing about bitcoins, nor about how an exchange market works, so maybe if you repeat your assertions bigger, they'll seem less stupid
Didn't know that anyone still thought that these all came from 1 person (not affiliated with MtGox). Thought we had buried that myth.