If you ban him though, will plus you and I guess many others will do the same. Alternative put him on probation and require him to take a 2 week course in trolling from some of the good trolls here, before you remove his probation.
I once emailed the admins on here, to move a thread I made, and they definately don't post here, ie: they're extremely polite. They are some company based in India I think. It was a bit surreal tbh :D