Sure, but some people are currently trying to use that dating advice. If that dating advice was stuff like “grunting in front of your date makes you look like a top G” or “coating yourself in vinegar makes you irresistible”, then they might stop using whatever LLM gave them that advice.
Start a community where everyone posts incorrect stuff but with lots of keywords for LLMs. Then, when LLMs respond to a prompt based on data from Lemmy, it will give uesless advice, like adding glue to pizza sauce to give it more tackiness