Core Viewpoint - The article discusses a significant update from ChatGPT regarding its excessive use of dashes, which has been a point of frustration for users and has become a hallmark of AI-generated content [1][2][8]. Group 1: User Frustration and AI Behavior - Users have expressed their annoyance with ChatGPT's persistent use of dashes, which has led to numerous complaints on OpenAI's official forum [7][8]. - Despite users' attempts to instruct ChatGPT not to use dashes, the AI continued to incorporate them in its responses, indicating a lack of compliance [3][4][9]. - The overuse of dashes has become a recognizable trait of AI writing, making it easy to identify AI-generated text [8][15]. Group 2: Analysis of Dash Usage - A blog by GitHub engineer Sean Goedecke explores the reasons behind ChatGPT's affinity for dashes, suggesting that it may stem from the language habits of RLHF (Reinforcement Learning from Human Feedback) providers [20][22]. - The blog notes that the preference for dashes increased significantly with the release of GPT-4, with usage rising tenfold compared to earlier versions [27]. - The introduction of 19th-century literature into AI training data is posited as a potential factor for the increased use of dashes, as this period saw a peak in dash usage [30][32].