SusshiRoll Because it is against the copyright of Webnovel? It harms the potential earnings of the author (as well as Webnovel)?
We have long moved away from the situation where translator takes all (in the case of Patreon and ad-revenue) from 2-3 years ago. The authors demand a portion of the pie, because they were the ones to created the content and they know how much translators can earn translating illegally (using Patreon), which can go as much as five-digit USD values a month.