I might su combining Proposal A (but only for contributions (to Debian) that actually involve the output of LLMs/generative-AI or that blindly trust their results) with Proposal C (for everything else).

However, in the case of item 4 of Proposal C, there are multiple kind of "assistance" that is possible; not all of them involve contributing the output of LLMs (e.g. the assistance might be to check for a mistake such as if a paragraph seems to be redundant or is incomplete or something like that; the result from the LLM might be incorrect but you will have to decide by yourself what (if anything) to do about it when writing your message). Even if some kind of assistance should not be banned entirely, it should still be discouraged (like the rest of Proposal C says). (Also, there are other programs that can sometimes be used for the assistance; e.g. sometimes ordinary spelling/grammar checking will do (although that won't find that an incorrect word that is spelled like a correct word in the correct grammar).)

I do not use LLM/generative-AI for any purpose, and would not accept contributions including their output into my projects, and would discourage other uses. (This seems to be similar to Proposal A and Proposal C.)