The odds 5+ people see your content is probably the same as it ever was, but ‘success’ has been redefined in terms of ever larger follower counts.
More eyeballs, sure, but worth 1/1000th of a visitor coming straight from a webring for your own niche, or that found you in the right section on Yahoo and AltaVista.
If you mean that there needs to be signals in place that an article was thought about and physically typed up by human fingers, well, that's a different problem I suppose.
In any case, the system prompt can factor in any existing signals that SEO might want to adjust for ("You are a chill software engineer dude, who understands the subtlety of colloquia in the field. You speak in modern slang and are very energetic about you field.").
I share your downtrodden sentiment, for what that's worth. The only idea I have for making genuine human digitized hallmarks is to start "writing" in heiroglyphs and pictograms. I'd love to hear more realistic ideas for signaling humanity, however.