ChatGPT likes to repeat words that were mentioned in the prompt. Especially this is noticeable when there are no synonyms. In your short paragraph, "ChatGPT" is

ChatGPT likes to repeat words that were mentioned in the prompt. Especially this is noticeable when there are no synonyms. In your short paragraph, "ChatGPT" is mentioned 5 times (!). So in some hypothetical situation, where Stackoverflow admins decide to write a detector, they could use it. And if bot owner decide to skip detectable messages (maybe by using a discriminator for updating weights), then the quality of answers will decrease even more.