I mostly use it to get a general vibecheck, it's pretty decent for fact checking and identifying narrative gaps, as well as finding sources for things I know are true but don't want to spend the time to manually find. Having the LLM output itself get posted is pretty dumb and somewhat disingenuous to people who read it IMO, I'm not just shoveling that out onto the internet

Why not? I do the same, I tell it the exact content, but I don’t have to do all the rest. My blog is a react based (because I like interactivity) and has no asset pipeline, so it’s not as user friendly to edit the content as e.g. a markdown file.