From that link:
This reads like a warning from a chain letter. I guess it's better to err on the safe side.I once went through the ceremony after the owner had assured me that every reference to his boat’s old name had been purged from her. A couple of weeks later, he discovered he had missed a faded name on her floating key chain. I advised him to start over, perhaps with a little extra libation for the ruler of the sea. Unfortunately, he declined. Since then, his boat has been struck by lightning, had its engine ruined by the ingress of the sea, been damaged by collision and finally sunk! It pays to be thorough.