I know not everyone likes the hundreds of automated battle reports, but they are useful when you're making guides, planning strategies etc...
It would be nice if buff kills could generate a battle report too - there are some circumstances where it can be confusing to know if your buff kill registered. I've known situations where 2 people have tried to use arrows on the same camp. Both get a report in newsfeed so both assumed they had succeeded - obviously one person was left without loot.
An email would be nicely reassuring.