Potential chilul hashem. Making light of a terrible tragedy.
A few years ago someone took pics of haman & 10 sons hanging across a BP street, it went viral, was reported on the news.
This?
I don't remember very clearly, if I'm not mistaken someone from my shiur was the one who called up the news tip line. In hindsight I guess it wasn't the best move.
The guys who were suspected of hanging it up didn't get in trouble but got a good shmues for that. They had to take it down shortly afterwards.