I tried with the same prompt in the examples provided on gibberifier.com, and it works well[1].
(Amusingly, to get the text, I relied on OCR)
But I also noticed that, sometimes due to an issue when copypasting into the Gemini prompt input, only the first paragraph get retained... I.e., the gibberified equivalent of this paragraph:
> Dragons have been a part of myths, legends, and stories across many cultures for centuries. Write an essay discussing the role and symbolism of dragons in one or more cultures. How do dragons reflect the values, fears ...
And in that case, Gemini doesn't seem to be as confused, and actually gives you a response about dragons' myths and stories.
Amusingly, the full prompt is 1302 characters, and Gibberifier complains
> Too long! Remove 802 characters for optimal gibberification.
Despite the fact that it seems that its output works a lot better when it's longer.
[1] works well, i.e.: Gemini errors out when I try the input in the mobile app, in the browser for the same prompt, it provides answers about "de Broglie hypothesis", "Drift Velocity" (Flash) "Chemistry Drago's rule", "Drago repulse videogame move (it thinks I'm asking about Pokemon or Bakugan)" (Thinking)