People get into trouble online by making jokes. No joke is innocent, except when directed against yourself. Every joke is, as Orwell observed, a small revolution. Joke against a race, ethnicity, religion, or belief and you are making an attack. People will see this in your joke!
They will read much more into the ambiguities than you know. They will think, “What does he REALLY mean by this?” And they are right. People think they are without malice, but they full of it. And it leaks out in jokes. This is why comedians are miserable and twisted people.