the thing nobody mentions here is google doesnt actually care if its ai or not, they care about whether the page does what searchers want. i've had fully ai drafted stuff rank fine and i've had "human written" articles tank because they were just fluff.
for me the editing part is less about hiding the ai and more about killing the generic filler. ai loves to write those "in todays fast paced world" intros and pad everything out. cut all that, add stuff the model literally cant know... your own test results, screenshots, actual numbers, a hot take. thats what moves the needle.
also depends heavy on the niche. low competition informational stuff you can get away with lighter editing. anything ymyl or competitive and you better have real expertise baked in or it wont hold.
so yeah the thread is right that editing matters but imo people focus too much on "will google catch me" when the real question is just is this page actually better than whats already ranking