You didn't really answer the problem? The person above was complaining that "17 apps to take a better selfie" is under the "Android" topic. Your only other choice is to block the entire publisher, which may be good if all that publisher posts is similar bad articles, but it's hard for you to know.

A far better way would be to get upvote/downvote per article, and then have the AI figure what your interests are, rather than base it purely on clicks, which tends to favor clickbait.

He gave two ways he would like to more finely control content:

1. subtopics (your example) where he was interested in Android but not selfie apps

2. by publisher: "I might dislike an article because the publisher is low quality"

I was replying with a solution to problem #2 only.