As the title says, aibu in thinking that if someone uses Dh/Ds/Dd and she/him in their op, regarding who they're griping about, other posters shouldn't refer to them as they/them?
If you do this, why do you do it?
How do you know you won't offend the op/subject of the post by erasing their sex/gender/identity/etc?
I would be very 🤨 if someone did this to me in real life.