This might apply to the AI integrations in Gmail, but someone's own agent setup might have more references saved privately than yours. You can't ask your AI to search through my personal notes.

I was going to say... Sometimes I load up my context with a ton of data. The output is shorter than the input.

The people that send that crap are the guys who one-off it, not the guys who have a carefully crafted context, skills, and local references on top of the prompt.

Maybe you personally do; most people would react more poorly to "find a polite way to tell this guy to fuck off" than the output of that prompt.

Is there a competition for the most contrived counter-argument?

We've been writing business emails for 40+ years. They'd know to tweak a 10-word prompt to a more polite version before sending it

It's an extreme expression but "soften this message" is a common goal.

I've been going back and forth on this, and I think I agree with you about 95%. But for some cases, where I don't really have a choice about whether or not I'm going to hear from you, there are certain dullards that I'd rather have filtered through a chat bot. It really would be an improvement over whatever they had to say. Listening to their genuine human output has negative value, but filtered through an LLM might bring that value up to zero.