The person who made all those anonymous threats admits they did it specifically to cause blowback against the pro palestine protestors.
“He believed, wrongly, that the posts would prompt a ‘blowback’ against what he perceived as anti-Israel media coverage and pro-Hamas sentiment on campus,” she wrote.
It can be done correctly. It’s just that if your audience is just racist and you don’t reevaluate and double down, then you’re not very good at satire. Or if you don’t understand the topic and just doing surface level bits