Too bad... The ones that leave insults like that are the ones that are mad and jealous. The ones that are good are more creative with their insults and form them in a way that is constructive criticism... most of the time
The problem with the web novel sites is that they are, at least somewhat, built on the expectations that the works posted there are already a finished work, ones to be rated and sold, not criticized and then improved upon.
There is a certain level of ... finality ... in the rating. You cannot improve from the review, even if it says useful things, you either die from it (or rather, your novel does) or prosper from it (gaining views, readers, followers, Patreon donation). But never, ever, improve. After all, ratings aren't the feedback tool, they are marketing tool, but web novel used them interchangeably as feedback to the author, a message to the audience, as editing, as constructive criticism, as actual marketing, as the value to feed the algorithm and many many more.
Yes, you could edit your chapters, fixing whatever they deemed a flaw, yet the review still stays, cannot be removed by the author once the issue is fixed, only by moderation, which is rarely done because moderation either doesn't care, or doesn't have the time and resources to effectively do it, so you are stuck with whatever was plastered upon you after the first edit.
This never happens with the traditionally published books. They may indeed receive a negative rating too, but the marketing is never entirely dependent on these. On web novel, however, whole review and marketing process is entirely crowdsourced to the people who don't have any vested interest in helping the book sales, and many want to damage it on purpose because the action has no negative consequences for them, while the book is buried with algorithm and leaves author demotivated to continue.
That's why there is a certain level of futility in listening to feedback or even listening to some advice, because there is no reward for the author doing so.