This is not the full story, she originally said the motive was to win online debates with wikipedia references (created by her alias account)
Scenario simulations based on eu4, hoi4 battles (possibly with mods), both teams would setoff by a historical event, also external events would affect the progress.
It's a somewhat popular online sport & sub-culture in China. People go to extremes for historical "accuracy" or just for the sake of it. Tons of memes are generated without people noticing.
In this example, Zhemao can claim something like "I should have extra 2000 silver starting at my castle because check out this wikipedia article". She surely have played many games in her favor.
Her apology: https://en.wikipedia.org/wiki/User:%E6%8A%98%E6%AF%9B