Fox has an article on the University of Wisconsin student newspapers that decided not to run pro-life ads; seems they could be controversial and don’t offer a service.
Apparently providing information about options for help for pregnant women, and educating people on the sanctity of life isn’t a service; you know, like abortion is a service. Porn is an appropriate topic for an article. So is sexting. And mocking belief in God.
I assume the controversy comes in because people would be reminded that abortion kills babies.