These both look like reasonable thoughts. Person 1 either sincerely believes it was written by GPT-3, or they are simply using the comparison as a sarcastic rem

These both look like reasonable thoughts. Person 1 either sincerely believes it was written by GPT-3, or they are simply using the comparison as a sarcastic remark (they should have made it more clear). Person 2 reasonably took the latter meaning. Edit: I should say mostly reasonable. Person 2 ended with uncalled-for snark, and as I said, person 1 potentially was being unnecessarily sarcastic. But I don't think this interaction is a good example of "bullshit".