In one case I said to a contributor that if I need rewrite again bug fixes as the review response, next time I'll just do the fix myself and mark the contributor as reporter. I have right to do that if hard facts support this decision. I don't care the credit myself but it is morally right decision for contributors who deserve the credit from their hard work.
XFEDI
ActivityPubConversation
LLMs as outreach mechanism for new kernel developers is at least the worst idea ever (not sure if anyone has proposed this).