No, this is equaly efficient as spending time on spam mail. Delete, filter, ignore. > costs money to store and takes time to deal with Are you storing request

No, this is equaly efficient as spending time on spam mail. Delete, filter, ignore. > costs money to store and takes time to deal with Are you storing requests long term? With sampling and a rolling window of history it shouldn't really affect you. I would spend my time optimizing that part than dealing with abuse forms.