Because by that point, they've acquired a sizeable audience of hate-readers. But the algorithm treats all clicks as equal. And so they become employable for the revenue they can generate from hate rather than like.
John S. HuntingtonPretty neat that once a person (Pamela Paul, in this case) climbs to the top of the media ladder, even if they fail spectacularly after getting there, they get a sort of sinecure that allows them to publish garbage in perpetuity.