while that's generally true (I'm a big believer in the idea that belief is action), trolling is clearly a case where people break away from their usual behaviou

while that's generally true (I'm a big believer in the idea that belief is action), trolling is clearly a case where people break away from their usual behaviour. Though in this case it reads to me like the employee is being sarcastic in the face of accusations that FB employees are knowingly and cynically engaging in unethical behaviour. Not that I know for sure, intent is tricky to judge especially over a text medium.