I have no evidence of who's falling for my 'trolling' online but it's very similar to what you describe. I'll make some absurd, nonsense claim or insult them using flowery nonsense language that can't possibly be taken seriously - but they do!
I suggested that Java devs (programmers) are the reason we'll never have FTL engines. They took me seriously!
Yet there's other times you'll get obviously younger people screaming in comments under videos "FAKE!" because they can't conceive that the video'd thing could happen.
In that instance I can understand it to a degree because they don't have the lived years experience to compare what they're seeing on screen. You'll get them claiming "that would never happen" or "people don't do that and if you think it's real go touch grass" and I'm thinking - "hang on that's happened to me at least 3 times".
I understand it's probably just the arrogance of youth but it's quite shocking at times just how confident they can be of their own ignorance.