In all my career I never understood staff surveys

Like they are said to be anonymous but we all know it’s a lie. The feedback at best will be ignored and at worst will just be used to bully the people who hate working at whatever shithole they’re in. But why do they do it? Why do management famous for having incredibly fragile egos and no ability to take criticism do these?

I guess cos plebs like me will always put everything’s great cos there’s no point putting anything else.