This suggestion is pretty old but as far as I can see it is not actually a dplicate.
I think it would be really useful to have some kind of alert functionality (email or push) for contetn (users, post, etc.) that needs to be aproved.
I do have a forum that does not have much traffic, but does seem to attract quite a few human spammers so it' configured to require content from new users to be moderated.
It would be really useful if I could get alerted if there is anything to do.