<xref>Kim and Yoon (2021)</xref> assess whether active US mutual funds exhibit ESG implementation after they sign the United Nations Principles for Responsible Investment (PRI). In a stark contrast to the fact that PRI signatories attract a large fund inflow, we do not observe improvements in fund-level ESG scores or fund returns. Furthermore, PRI signatories are not likely to be superior in ESG issues prior to signing relative to non-PRI funds. Given these findings, a reasonable reader may perceive PRI signatories as hypocrites rather than evangelists.