Why do you feel that is discriminatory?
Which is true, because all forms of hiring are discrimination. Business discriminate against people who don't have the qualifications that they believe will positively impact their business.
If the user you responded to has reason to believe that a certain company has hired certain individuals who are not qualified to do the job they were hired for, I encourage her to say that. But it's not enough to say the practice is blanket good or bad. There are just too many variables to account for.