Came here to mention that. From the article you linked:
Shomer, who called the incident a “cop overreach,” later claimed he wasn’t the only one responsible, telling reporters at the time, “I’m not the original. There’s a whole Penis Man army out there.”
It’s likely there are actually penis men. Two have been arrested, one of which was recent: https://www.complex.com/life/a/markelibert/man-arrested-for-penis-man-graffiti-in-tempe-copycat-warning
It’s like a CBT hydra: cut one down and two more shall rise up.
Came here to mention that. From the article you linked:
It could be like the Dread Pirate Roberts, where the mantle continually gets passed on to the next person. The Dread Pirate Johnson.