Wejo, "What's wrong with you?" is not an insult, it's a colloquial phrase of disbelief. It's a theatrical capitulation. I would say that to any friend or family member, and none of them would think they are being insulted. If I say "What's wrong with you?" it's because the antagonist refuses to listen and accept what I had said in clear language. The substance is simple: "Report those posts." Putting your name to it can be helpful too. Whatever you do signing "wejo" or "rojo" isn't going to fool anyone.
It's times like these that I think the Candid Camera film crew is going to come out of the closet with "We got you!!!!!" and everyone has a big laugh...but no, I don't even see a microphone hidden in the Bonzai tree.
Translation: "I'm a bully, and I have no idea."
At least we know he isnt a bully on purpose, he just cant help himself.