If everyone searches through Gemini, then there are no click conversions. Without click conversions there is no incentive for many websites to make new content. Without content there is nothing new to learn for Gemini. It's an Ouroboros problem.
But even if you only post for fun, if most people only find your content by seeing it re-hashed by a LLM that hallucinates some other stuff in the middle, I'd probably also lose the fun in posting for posting sake.
Same with my old open-source projects, it's kinda cool knowing that all the old stuff that nobody would have ever looked at anymore is now part of a humanity-wide corpus of useful knowledge on how to do X with language Y.
Oh no.