> The thing is, this is something no one is really incentivized to lie about

I don't think it's lying in the sense of trying to make someone else actually believe it. It's just a form of creative fiction writing. It can be a lot of fun to write in this mode; when well done it's a pleasant kind of erudite humor because to produce it (and get it) you have to be somewhat knowledgeable in the topic. Mockumentaries might be the film/TV equivalent. Unfortunately (especially for certain subjects) it also confuses and causes strife if readers take it too seriously.