How come we cannot know which moderator took care of an issue?

Let me explain here.

One replies to a question. Then one gets flagged by others as being inappropriate [ spelling / grammar / spam / attacks etc ]. Then a moderator either decides the flagging was correct or not and then by his or hers standards they either moderate it or let it as it is.

Why can’t we see which one moderated the response?
Why can’t more talk about some of them?
[ excuse me if you do talk about a reply ]
Why does one not get some warning for making attacks?

And there’s a lot more I had in mind but it’s late so I can’t remember them all right now.