The week of September 10, 2017, we removed more than 3 million self-reported terms related to education and employment as targeting options in our ads interfaces. We did this after discovering a small percentage of people had entered offensive responses, in violation of our policies. After a thorough review, we are making additional changes to improve our policies, enforcement practices, and also adding back ~5,000 commonly used targeting terms that meet our Community Standards.
For more information see Ads Developer Blog, Update to Self-Reported Profile Targeting Options.