Anywhere you need text written, it can generate something. Like you said, it might not be correct, but you can read what it tells you, you don't need to copy paste it verbatim.
Rather than asking it a question, feed it some bullet points and watch it convert it into paragraphs. Read the paragraphs and remove anything extra it added. It probably saved you 10-20 minutes and lots of frustration depending on how much you hate writing.
If you can't see the use for yourself, that's fine. But I really don't believe that you can't see how it would be useful to other people.
I find it hilarious to compare with crypto, where the majority of projects are purely about speculation.