Scam baiting is the act of tricking 419 scammers (also known as Nigerian scammers or Advanced Fee Fraudsters) into wasting their time on a fake victim—sometimes for weeks, months, or years—in ...

It's called scam baiting, which Collins English Dictionary defines as the "practice of pretending to fall for fraudulent online or telephone schemes in order to waste the time of the perpetrators." ...

My favorite scam-baiting trick is when the baiter Shiverme Timbers pretends to need a carving for some reason, like an art grant, and fools the scammer into actually mailing him a carving.