Here's where my idea gets shot down in flames, but here goes

:
Would it be possible for someone to create a mod that bans users by IP automatically, if they create a certain amount of errors on the forum in a certain time period?
It's just struck me today as I sat and looked at my error log - some twonk has used a spider to get all my members email addresses but couldn't get them because they weren't logged in, so the spider has attemted to view each member's profile individually and created a huge error log.
I've banned the IP address manually, but I can't monitor the forums 24/7, so having something like this would be absolutely ideal. It'd also go some way to prevent people trying to break into other people's accounts?
Just an idea
