The Illusion of Thinking: Strengths and limitations of reasoning models [pdf] - https://news.ycombinator.com/item?id=44203562 - June 2025 (269 comments)
Also this: A Knockout Blow for LLMs? - https://news.ycombinator.com/item?id=44215131 - June 2025 (48 comments)
Were there others?