I can see why you would feel that way about AO3 lock, but I have to admit I archive-lock all my RPF just because there are so many people so loud about the idea that all fic writers should archive-lock their terrible filthy RPF because what if the subjects of the fic find it & etc. etc., but I would not care if people talked about my RPF on a public post. (Most of my RPF is G-rated fic about Japanese people so I am not worried about them finding it. I am just bending to pressure to archive-lock.)