An inglorious record has been set at the World Intellectual Property Organization (WIPO) in 2021, and we still have nearly two months remaining in the year. From what I can see on the WIPO case filing page, it appears that more UDRP cases have been filed this year than in any prior year.
WIPO UDRP cases are listed by the year in which they were filed. The case numbers are in numeric order, and a link to each set of cases contains 200 UDRP filings. 2020 was the first year the case numbers reached the 3400 – 3599 set of UDRPs. In 2020, the highest case number was D2020-3561, which indicates that 3,561 (gTLD) UDRP cases were filed in that year.