Yeah we're not too far from agreement here.

Something I think though (which, again, I could very well be wrong about; uncertainty is the only certainly right now) is that "so the person after me would have a good clean idea of what is going on" is also going to continue mattering even when that "person" is often an AI. It might be different, clarity might mean something totally different for AIs than for humans, but right now I think a good expectation is that clarity to humans is also useful to AIs. So at the moment I still spend time coaxing the AI to write things clearly.

That could turn out to be wasted time, but who knows. I also think if it as a hedge against the risk that we hit some point where the AIs turn out to be bad at maintaining their own crap, at which point it would be good for me to be able to understand and work with what has been written!