I have genuinely found LLMs to be useful in many contexts. I use them to brainstorm and flesh out ideas for tabletop roleplaying adventures, to write song lyrics, to write Python scripts to do various random tasks. I've talked with them to learn about stuff, and verified that they were correct by checking their references. LLMs are demonstrably capable of these things. I demonstrated it.
Go ahead and refrain from using them yourself if you really don't want to, for whatever reason. But exclaiming "no it doesn't!" In the face of them actually doing the things you say they don't is just silly.
The problem is that it did summarize the result of this search, the results of this search included one of those "if the Earth was the size of a grain of sand, Alpha Centauri would be X kilometers away" analogies. It did exactly the thing you're saying it can't do.
Nothing is perfect. Does that make everything a massive catastrophic threat to humanity? How have we managed to survive for this long?
You're ridiculously overblowing this. It's a "ha ha, looks like AI made a whoopsie because I didn't understand that I actually asked it to do" situation. It's not Skynet coming to convince us to eat cyanide.
Of course it's ignoring that. It's not real.
You realize that energy costs money? If each web search cost an "obscene" amount, how is Microsoft managing to pay for it all? Why are they paying for it? Do you think they'll continue paying for it indefinitely? It'd be a completely self-solving problem.