Guessing one aspect of a story doesn't change how it's told. Like yeah, they know the big plot twist, but they're not gonna know how it'll go down or how I'll reveal it.Even more so, predicting parts of stories has been around for a while. That's a given. Some people get it right, some people don't.
Example -- Unohana from Bleach had always, ALWAYS, been predicted to be the previous Kenpachi for the Soul Society. Why? Because although she was soft-spoken and was the medical division, people were afraid of crossing her. People would never challenge her. And you know what? That turned out to be right. But this was a prediction built up on people paying attention to the story for years (because again -- Bleach is a 20+ year manga). People could see those little moments and infer.
That's why I said I don't care.
If you can figure out my story telling, follow along, and understand, it means you were paying attention. It means you were captivated enough to try and see how I could spin the plot twist.
If I get readers like that, I'm set.
People who go "oh, this story sucks because XYA" are people who aren't my readers. They just guess and happen to be right. I can't just quit a story or try and stop the commenter because someone guesses right on coincidence. Because again -- nothing is set in stone, and for me to try and stop someone would imply that it is.
It implies that I think my story is so flimsy that one little comment breaks it down.
And that's silly.
I just let that shit ride, keep writing my story, and so on. People are gonna be impressed whether they know a prediction came true or not. I know because I've kept reading stories that made predictions come true.