It doesn't pertain to the singularity. This sub is for discussing the singularity.

People loose their careers all the time because they say something or said something twenty years ago in a private email that they're not suppose to say. Pretty sure there's subreddits for those things but it has no effect on the singularity.

Also nowhere in the link you posted does Nick Bostrom say he is in support of Eugenics. He says he's in support of parents having options to "enhance" their own children.