I think I understand Phil's mindset with the photograph...
Phil has consistently taken L's in his life that he's really fuckin' desperate for a W. After all, he's known as "The Guy," who pulled his hog live on stream, something people who barely know anything about him are aware of. So, he thinks by showing this photograph on stream, he's hoping to turn PPP into another "The Guy," not realizing that the thing that makes his "Guy Moment" so funny is that he did it entirely to himself, while his story of him pretending to be PPP's friend, just so he could show off this image make him look like a fucking sociopath.
Basically, Phil's desperately wants a moment where he's the one dragging out embarrassing shit on other people, just like everyone does to him.