Most admins on SA-MP tend to just type /ban quicker than ask how/what/when/where happened in rulebreaking.
Actually, this is false... I am one of SA:MP's
strictest Admins, yet ban is my least-used punishment.
I wouldn't object though to the idea of an auto-reply in emails if the developers would be too busy to send a response. I once reported a DMer / Flamer in 2008 MTA:VC to Aragorn's email, who he banned afterwards and sent a response.