On Time.com, Erika and Nicholas Christakis, who both work at Harvard, think that Oprah is a lousy choice for Harvard’s commencement speaker.

Oprah’s particular brand of celebrity is not a good fit for the values of a university whose motto, Veritas, means truth. Oprah’s passionate advocacy extends, unfortunately, to a hearty embrace of phony science. Critics have taken Oprah to task for years for her energetic shilling on behalf of peddlers of quack medicine. Most notoriously, Oprah’s validation of Jenny McCarthy’s discredited claim that vaccines cause autism has no doubt contributed to much harm through the foolish avoidance of vaccines.

It’s kind of a good point, actually. That anti-vaccine stuff is dangerous, and the peddlers of it have done American society a great disservice.

Of course, there’s another reason that Oprah’s not a great fit for Harvard commencement: She’s such a strikingly unoriginal, predictable, boring choice.

But maybe it’s just one celebrity brand schmoozing another….