Karaite Judaism recognizes the Tanakh only as its source of Jewish Law and practice. The Tanakh includes the Book of Esther. A simple reading of Esther 9:20-32 has at least some segment of Jews accepting the days of Purim upon themselves and later generations. verse 31 mentions fasting and crying as well, The Fast of Esther in Rabbinic Judaism.
Do Karaite Jews celebrate Purim and The Fast of Esther? If not, how do they interpret those verses in Esther 9?