Ignoring it is the correct move. They aren't serious allegations, otherwise they would have been made in a serious manner.
The guy claims that he was wrongfully terminated for antisemitism in Germany of all places. Do you really think the German government wouldn't take that seriously and investigate? But all he decided to do was blow hot air on his blog, because his allegations are nothing more than a cynical lie meant to hurt his ex-employer.
He didn't wash his hands and move on, he took to his blog and tried to spread the story around the net. If he were serious he would go to the authorities.
The guy claims that he was wrongfully terminated for antisemitism in Germany of all places. Do you really think the German government wouldn't take that seriously and investigate? But all he decided to do was blow hot air on his blog, because his allegations are nothing more than a cynical lie meant to hurt his ex-employer.