Choosing keyword matching as the algorithm is explicitly a way to target recommendations of information provided by another information content provider. As is

Choosing keyword matching as the algorithm is explicitly a way to target recommendations of information provided by another information content provider. As is sorting by most recently updated, as is using a machine learning model that optimizes for engagement. All of those approaches can lead to illegal content, and the entire point of Section 230 is that regardless of which they choose, they are immune from any legal repercussions of surfacing that content.