Michael Paulson, writing for "The New York Times", wrote that while Driscoll has endured criticism from the American political left and liberal Christianity for many years, recent years leading up to and including 2014 saw the rise of criticism from conservative Christians, including Driscoll's former "allies and supporters." According to the "Seattle Times", accusations of plagiarism by talk radio host Janet Mefferd were a "crucial turning point" that drew outside interest into Mars Hill's internal affairs, and prompted inquiries from new critics about the church and how it handled its finances. After hearing of Mefferd's plagiarism accusations, evangelical Christian and Grove City College psychology professor Warren Throckmorton took interest and became a prominent critic of Driscoll and Mars Hill, documenting other examples of perceived plagiarism, abuse reported by former Mars Hill members, and questionable uses of church finances.