[quote]The use of irony, sarcasm, ridicule, or the like,[/quote] The post utilized sarcasm. [quote]in exposing, denouncing, or deriding vice, folly, etc.[/quote] I was denouncing/deriding anti-vaxxers. Satire makes fun of people through imitation or, like the definition, ridicule to prove that they're stupid. Which is exactly what the post did. Thanks for making my day.