The online knowledge community operator briefly achieved profitability in the first half of this year, but that momentum didn't carry into the third quarterKey Takeaways:Zhihu reported its revenue fell 22% year-on-year in the third quarter, as it slipped back into the red after finding profits earlier this yearThe operator of a knowledge-sharing community, often called the "Quora of China," said its paid membership revenue for the quarter dropped 16% year-on-yearGenerative AI is reshaping the global content ...