How about the examples where the toy didn't result in a new standard, and the experts/senior folks were right?
NFTs and Web3 were a VC and hype powered rug-pull from the beginning.
LLMs on the other hand can solve problems. Not every problem, not perfectly. But you can solve actual things with them today.
Is there hype? Fuck yes there is. So much hype and snake oil. But there's a nugget of actual usefulness hidden in there.
If you're building "production ready" stuff with logins for Other People and god forbid taking payments, yes you definitely must understand what the code does.
But when I'm building a tool that tags random meme reaction .webm files and finds duplicates from them, I couldn't care less what the quality is or if I understand what it does.
I can easily run it, observe if it does what I want and Vibe harder if it doesn't.
tl;dr vibing prod code = bad. vibing personal tools = good.