I take a different stance on your final point. I think people should absolutely not use AI tools for functional communication as a crutch because they struggle with writing clearly.
They need to learn to write clearly. I believe there's a direct connection between clear thought and clear words.
Learning to write clearly = very valuable.
Reading what someone wrote while they were learning = less valuable.
I just want the clear communication.
ALTERNATIVE Thought: I’m willing to post/comment to help them if I think they will listen. An LLM behind the writing destroys this part of the community, because there’s nobody to teach/argue with. It’s just wasting our time and energy.
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I think it's good to be pragmatic about these things. To me, it's similar to wondering whether we insist that doctors learn to write well, or we just give them a computer so that the pharmacist doesn't have to play philologist with their scripts. The vast majority of communication is routine, and can probably be improved with automated tools.
Now, I also see the counterargument that, in the doctor example, the computer is simply a tool that improves a process rather than a crutch that replaces the underlying knowledge, but I suspect that, in a lot of cases, that's probably OK.