I agree, or maybe, if automated responses aren't an option, a sort of "Thank you for filing a report. We are now looking into the problem" type of response can be thought up to have moderators manually send to the person via PM who filed said report?

I still don't agree that there should be any sort of "privacy rights" given to an offender, as I feel they lost any rights thereof when they committed any sort of offense. However, I'm not in charge of the site, so it is what it is.