Does the average person really do care all the time? Maybe the outlet it comes from as a whole (factuality, political lean) but more rarely the exact author. Many don’t even have the critical skills for any of it and consume whatever content is chosen for them by whatever algorithm is there. We probably should care, I just don’t think a lot of us do.
For me, needing to know that something’s written by AI serves threefold purposes:
1) acknowledging that it might be slop that someone threw together with no effort (important in regards to spam)
2) acknowledging that depending on the model the factuality might be low when it comes to anything niche (though people are wrong too, often enough)
3) mentally preparing myself for AI bullshit slop language, like “It’s not X, it’s Y.”, or just choose not to engage with it (it's the same disgust reaction as when I find a PDF and realize it's just scanned images, not proper text)
In general, unless the goal is either human interaction or a somewhat rare case of wanting to read a specific blog etc., most of the time I don’t categorically care whether something was lovingly created by a human or shoved out by a half baked version of Skynet - only that it’s good enough for whatever metrics I want to evaluate it by. I’m not ashamed of it and maybe that’s why I don’t take an issue with AI generated code either, as long as it’s good enough (sometimes better than what people write, other times quite shit when the models and harnesses are bad).