It's not cynical nihilism. There's a lot of things I believe in. Just not this.
Many people get this kind of dopamine hit from saying that something is going to happen (similar to the one from telling people you're going to do something). "Twitter is going to fail in 2 weeks" / "Trump will be impeached next month" / "Hunter Biden is going to be jailed". It's traumschadenfreude.
Wishcasting is a kind of interesting, yes, but I think truth seeking is more interesting.