@jens
I'm still on the fence about it. It is fascinating technology, and it doesn't inherently have to be used to replace people; I've always said that strong AI (now AGI) is a pointless goal because we have plenty of people; we should use AI for things himans are bad at. However, capitalism is of course looking to use it to replace people.
But apart from that, the cost, and the origin of the training data, I see other risks in its use: that we become too dependent on it, that we outsource our actual thinking to it and become dumber as a result. I know the same has been claimed about previous technologies, like books, but man, I can just feel myself getting dumber when I use it incorrectly at work. There are better ways to use it, like as a tool to access info and learn more effectively, but we already know that many people will use it to outsource their thinking, and may be pressured explicitly or implicitly by their employer to do so. And if you do that, you're allowing yourself to be replaced by the AI.