If you watch/read news etc you'll be surprised of the amount of degeneracy and horrifying things that happens all the times. The worst unimaginable things I heard all happens in real life for example... Chances these things happens irl are not 0 basically is my point. There's a saying if you can imagine it you or someone could or it has been done before.
I think the author is going for the Killing and Stalking strategy and what many tiktokers do the "I do/say something that is absolutely immorla, idiotic, scandalous, etc so people talk about me and interact with me (in this case share, talk, call out webtoon)" and this gain attention.
But they could also using the Remarried Empress strategy and what soap opera and reality shows do. Keep the evil and unfair guy on the winning side and make protag go through all kind humiliation so the readers gets fired up and viciously stay tuned to the story because they're waiting for that "sweet sweet Karma" moment. (used often in isekai villainess with forced pity on the first chapters).
I hope that this is not based on a real person but if it is I really hope this is to help people see what domestic abuse and human trafficking may be like. whoever wrote this and came up w this shit if it’s not based on a real story which i doubt it is, is an actual crazy menace and i hope that it was not written by a person who fantasizes and loves BL. especially by a women.