In this case those personal opinions are widely publicised, and reflect -- rightly or wrongly -- on Y Combinator. At that point it does become a matter of busin

In this case those personal opinions are widely publicised, and reflect -- rightly or wrongly -- on Y Combinator. At that point it does become a matter of business, as the backlash may end up hurting Y Combinator's business (negative press, founders not applying, investors not willing to work with it, etc.).