Muppet Trap
A question, statement or meme about a moral panic subject (tobacco, guns, vaccination) postured as authoritative while exercising demonstrative or even hyperbolic ignorance of the subjects discussed initiating a feedback loop of ideological sock puppet responses.
Was on Facebook last night trying to explain to some 2A guy that open carry doesn't mean you don't store your other firearms safely while trying to explain to some anti gunner that the driver bits she found in the parking lot are not projectiles, got stuck in the Muppet Trap for 2 hours...