All the author is showing is that no-one who he tried to scam spotted his fake duplicate packets. At best, none of the people were running any QI-detecting code

All the author is showing is that no-one who he tried to scam spotted his fake duplicate packets. At best, none of the people were running any QI-detecting code, and if they were, no-one reported the incident to a forum that he read. It's not a very conclusive result, really.