Originally, many people thought that Su Li's mysterious powers had fizzled out. There was a saying which went, "evil people live longer than good people." As they harbored those thoughts, Zhang Yanwei was still at the stage where everyone thought her to be the ultimate evil. She was most probably the final boss. Final bosses don't just drop dead, do they?
It was also a well-known fact that Master PhD did not give a damn about outsiders' opinions. On the contrary, she went out of her way to go against their wishes. If her readers demanded that PhD kill off Zhang Yanwei, how could Master PhD simply comply? If she wrote according to her readers' wishes, how was she any different from those hollow, soulless writers?
Of course, Master PhD did not look down on hollow literature authors. She simply had her own principles. She hoped that her writings would withstand the test of time.
