Im Natteboy and I was banned for flying. This was a few weeks ago. Before, I had flymod installed so that could be a reason. I dont really remember that I flied but you might be right. When I got banned I didnt know why, there  was no reason such as "Banned for flying" it just said "Ban hammer has spoken". I know it was wrong to fly and Im really sorry I did. I do no longer have flymod or any hack installed. I think I should be unbanned because I do no longer have any hacks/mods installed and my friend is playing on that server and I wanna join him. I think that next time you ban soemone tell them why theyare being banned and give them a chance to defend themselves. I really hope I get unbanned now so I can enjoy the server