They mystery to me is who is putting fiat in given that it is a relatively shitty place to buy if price is what one cares about?
That's the mother of all questions!
And I don't think it's many people that put fiat in. Hence the long withdrawal delays.
You fail in two ways.
1: The fiat is already there. They don't need more fiat in to process withdrawals. Which is also proven by 2: Domestic JPY withdrawals work fine and EUR withdrawals via SEPA works as it always has. I.e. slow but predictable due to a daily limit.
If that is true in a major way then Mt. Gox is eating it's own tail and one can expect to see a drastic shift in their situation at some point. And it would probably occur rather rapidly at the end...like when water disappears from a large flat heated surface.
I'd also point out that the fact that JPY and EUR via SEPA still work is NOT great evidence of the lack of a liquidity problem. If one existed then it would be logical to address it by failing to perform on less than 100% but greater than 0% of the withdraw methods.
That said, regulatory hassles associated with FATCA and the legal issues that Mt. Gox has in the US are perfectly sufficient as a possible explanation of the problems I am experiencing (2 months with no joy on my intl USD wire) and
liquidity solvency issues on the part of Mt. Gox are entirely optional.
edit: fix