Here's a timeline for your promised 'crackdown on cheating':
-You said you were going to crack down on cheating
-You deleted Sinners
-Sinners cried loudly
-You reinstated Sinners
-You caught Fanboys (and prolly others) cheating
-You're scared to delete them
Delete the cheaters. Ignore their emails, and gain some much needed respect from a community that absolutely hates you guys.