数学虐我千百回我恨数学忆万年
[shù xué nüè wŏ qiān băi huí wŏ hèn shù xué yì wàn nián]
In an exaggerated way, this user name captures the frustrating and sometimes traumatic academic experience with mathematics over many attempts ('times of torture'), expressing a strong hate towards math and the memorable agony that may last a long time in memory ('hatred remembered for thousands of years').