Regarding your point about the percentages, the OP states that between 10-90% of positive or negative posts are removed, depending on the group. Looking at just

Regarding your point about the percentages, the OP states that between 10-90% of positive or negative posts are removed, depending on the group. Looking at just the positive posts for a moment, if around 50% of the posts in the news feed are classified as positive (46.8%), surely removing 10% of those is precisely the 5% of posts you claim is different. Note that the percentage removal is based on the uid, so the range of posts removed would be between about 5 and 45%, depending on the poster. The 4.68% quoted is for a user on the extreme low end of the removal range, and is percentage of total posts, not positive posts. I don't see how this is different from the claimed 10-90% of positive posts. Similarly for negative posts. Am I misunderstanding something?