>Even in projects where I use LLM liberally, I would rather not read or have to engage with your LLM output.

I don't want to read LLM output on a project either. But you may have misread the quoted section, it isn't saying "you can't post LLM output," it is saying you can't ask an LLM to advise/critique your own comment before posting it.

>>If you use a chatbot to give you advice on a comment on the issue tracker, that comment is unwelcome.