I used AI to write a thank you to a non-english speaking relative.
A person struggling with dimentia can use AI to help remember the words they lost.
These kinds of messages read to me like people with superiority complexes. We get that you don't need AI to help you write a letter. For the rest of us, it allows us to improve our writing, can be a creative partner, can help us express our own ideas, and obviously loads of other applications.
I know it is scary and upsetting in some ways, and I agree just telling an AI 'write my thank you letter for me' is pretty shitty. But it can also enable beautiful things that were never before possible. People are capable of seeing which is which.