The market is telling you that there is a 1 in 6 chance of default. But don't let that stop you from buying.
I think you failed to read or understand the second part of the response.
These bonds are backed by the “Full Faith and Credit of the GERMAN government.”
In the words of our beloved leader, Greece is “Too Big To Fail”. If the deluded dream of the Euro is to survive, Greece will have to be bailed out. And the only one that can pay the bill is GERMANY.
So it actually not a bad play. Get the high interest rate and in a default, the Germans will pay the note off.
What’s stupid about that?