Pretty sure he didn't say anything, plus hes 911 so he probably wasn't speaking clearly either way.
He needs 5 minutes of video, and your friend didn't get banned for shooting the tires off the quad. He most likely got banned for not giving someone enough time since that's what the admins banned him for.
Don't call someone simple minded for a suggestion that you CLEARLY, know nothing about. There IS earplugs, you simple mind.
Hit M and go to controls and read.
I'll also recommend reading the rules on that page because if you don't know the simple custom controls you probably don't know any rules.
Good luck, have fun.