[paulpw]

From: https://bitcoinfoundation.org/forum/index.php?/topic/700-mtg... " Mt Gox has a custom reimplementation of Bitcoin that is known to be quirky and non-compliant in a bunch of ways, for example, it used to overlook the coinbase maturity rule. That means miners who use custom software to send money to MtGox immediately, without waiting for confirmation, didn't get spotted by the MtGox software. When they tried to respend the newly mined money, the transactions failed to propagate.

I don't know if that specifically is still an issue, but the MtGox scanner site suggests that their implementation fails to implement a bunch of other edge case rules around fees, sizes, and canonical signatures.

It seems very likely to me that for some reason Mark K is not able to work on his codebase anymore, and isn't able to resolve bugs in a timely manner, leaving his support staff to try and clean up the mess by making horrible hacks like "throw away and retry later". The question in my mind then becomes - where is Mark and what is he doing? "