[larrys]

"if there was a way to show the reasoning behind deleted submissions"

I don't know why they don't do this but I can see why they might not do this.

By stating a reason you then invite questions around the decision and waste time in addressing those questions. By not stating a reason many decisions like this will simply go unquestioned in a "nothing to see here move along" kind of way.

[itxtxtcitc]

However, as this post illustrates, not posting a reason also invites questions around why the post was deleted.