this post was submitted on 17 Nov 2025
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Fuck AI

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Em dashes have become what many believe to be a telltale sign of AI-generated text over the past few years. The punctuation mark appears frequently in outputs from ChatGPT and other AI chatbots, sometimes to the point where readers believe they can identify AI writing by its overuse alone—although people can overuse it, too.

On Thursday evening, OpenAI CEO Sam Altman posted on X that ChatGPT has started following custom instructions to avoid using em dashes. “Small-but-happy win: If you tell ChatGPT not to use em-dashes in your custom instructions, it finally does what it’s supposed to do!” he wrote.

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[–] Blackfeathr@lemmy.world 13 points 1 week ago

So, making inorganic accounts a little harder to detect. Cool cool, cool.

I know there's other tells besides the em dash, but this is just deliberate obfuscation on his part to further enshittify the internet.