I think I'm missing something.
Alerts only used to show something that required an action or attention from someone that could administer that request.

Does it now show things that succeed and fail?

I think only showing an Error when an Error occurred is good but I want to make sure that your request is not saying "hey I don't like alerts so I don't want to see them" at all.

In that I think I would modify your request to say make the Alerting system customizable for the user experience. Allow the user to set whether they see events for specific items.

He's talking about the javascript popup when you approve/deny things. The popup that looks like "Approve: 0, Denied: 2, No action: 3".

Yeah I'd rather those didn't go away. I understand what he is saying about silent success however and especially when you are doing multiple actions it is nice to see that the system confirms the actions in a summary.

If you change anything it would be better to default them to on and give each user with admin type privileges for approvals the ability to turn them off for them only.

I'd have to agree with Saudorun here. I like seeing what I do confirmed by the server, for my own sanity if nothing else.