I have always suspected so, and it appears I was not alone:
These zealous enforcers of propriety are part of what is known as the sanguan dang, or “Three Outlooks Party.” Together, they form one of the most distinctive and surprising groups in China’s internet ecosystem: strict moralizers in an increasingly amoral world.
Despite what the name may suggest, the party is not a close-knit organization with a clearly defined platform. Rather, it’s an umbrella term for a wide array of netizens — mainly young women — who share a similar outlook on life, the world, and morality, the “three outlooks” of the party’s name. At its core, however, their mission is simple: Re-sanctify traditional marital and familial values by any means necessary, which includes attacking anyone deemed to have violated either institution...
...On online literature platforms, party-aligned users take it upon themselves to rewrite well-known stories they believe harbor “bad outlooks.” For example, the site is home to a number of fan fiction-like versions of “Titanic” in which Rose’s fiancé Cal is the sympathetic hero, while the handsome young Jack is portrayed as a callous homewrecker.
Read the whole article over here
P.S. Whatever you think of Titanic (I thought they weren't married only engaged), real homewreckers should be shamed, imo.