In general, each blacklist targets a different facet of slop content farm structures. Some LLM use-cases like search are legitimate, but most traffic volume is spam/slop related.
Depends on your use-case, but most people don't need content used in network nuisances like YC AstroTurf posts. =3
Being carelessly overzealous with flags/blocking is a reliable way to kill a community by making it overly toxic, speaking from experience.