If you're going to use sarcasm in your title or post content

it's a good idea to explicitly state that you're being sarcastic, or better yet avoid using sarcasm to make a point. Political discourse has become so extreme, not here specifically, but everywhere, that it's very hard to tell when someone on social media is being sarcastic unless you know their posting history. The South Park writer's thread is an example. Judging from the responses, some people thought the the OP was being serious. I thought he/she was being sarcastic but couldn't be sure.