Because, from this stray comment (https://www.quora.com/Has-your-Q…), and from my own experience, the Quora feed this week is promoting more “ancient” answers in general.
In the topics I prefer to frequent, this is a very very good thing indeed, and I do not want to see it undone.
The correct answer would be to treat politics and other recentist topics differently in time depth than slower-moving topics. But frankly, no, I don’t have the confidence that Quora can implement that right.