I do think people should be notified when they are reported, .. but I don't see how it would be beneficial in the way you are describing.
From my perspective, .. I've never received any kind of restrictions due to behavioral issues, but I would be genuinely surprised if I had never been reported, and I know for sure that there have been times where my behavior should have been reported.
So this puts me in the position of not knowing where the line is. .. It is entirely possible that I am a single report shy of receiving an actual restriction. It probably wouldn't be anything severe, and it most likely wouldn't go beyond that, .. but I have no way of knowing.
From the other side of things, ... I imagine it would be difficult for players who have received punishment to know for sure that they are actually improving. This shouldn't mean that they get a report card that says they can only get 4 reports a week before they should expect issues, meaning they can troll for 3 games and they'll be fine, .. but if they get a report that shows that they have received 3 reports this quarter and 4 reports last quarter, .. that is at least some improvement.