It's only an "issue" to the extent that someone who is not familiar with the protocol might be misled by it. After 4 years running an exchange, one would hope

It's only an "issue" to the extent that someone who is not familiar with the protocol might be misled by it. After 4 years running an exchange, one would hope that Gox would have someone familiar enough with the protocol to avoid this, but I guess not. This page has been there for at last 1 year: https://en.bitcoin.it/wiki/Transaction_Malleability https://en.bitcoin.it/wiki/Transaction_Malleability