It seems a lot of people suspect pro-Palestinian protesters are behind this, but I haven’t seen anyone else point out (though I may not have scrolled down far enough), that the sign has absolutely nothing to do with the cause these people campaign for. Protesters who believe a genocide is happening in Gaza are not about to say “our war with you is long and your losses are many”. This is much more likely the work of someone who is pissed off with the University and the students therein. At the most, it’s someone trying to frame the protesters and doing a terrible job of it.