What does it do?

Klandice Owens is more that mildly annoying.

Personally, I think it’s mainly an issue of transparency and lack of ability to change preferences.

If Facebook was transparent about how their algorithms worked and gave you access to tweak things, it would be a whole different story. But being profit motivated, they don’t give a shit what you want. They’re going to show you the things that are statistically most likely to keep you engaged for good or ill.