pay cow

A pay cow is person who is far too easily persuaded to fund any number of projects, causes, or content creators.

Grift YouTuber: "Donate to my Patreon so I can keep making videos about {insert grift topic}
Bob: "Ok! I can donate $10.00 a month to this guy!"
Jenna: "Don't be a pay cow, Bob. This guy only posts AI script videos. Spend it on something that matters."