I'm not sure about others here, but I occasionally spend time typing out a long reply to someone and then simply deleting the reply without posting. Most of the time I conclude -- a little too late -- that the effort was not worth it.
How nice it would be to have an LLM trained on all of my previous writings and simply be able to click a button to indicate "reply to this person, please." I know I don't have enough training data from HN, and maybe not even from all of the sites I contribute, combined. It is still a nice thought, though.
But: Let's say I do acquire enough training data to have a local LLM do exactly what I describe. My volume of "replies" would certainly increase. Is that a good thing, on average? If the tool became ubiquitous, would it be a good thing for the average social media user? Or more pointedly, would it be a good thing for consumers of that social media? The cynic in me thinks "no" -- the effort required today surely weeds out _some_ idiots....
(Full disclosure, I nearly closed this window without clicking the "add comment" button.)