You were identified by BigBrother after a TNT explosion damaged the train station. The TNT, which was placed by you under the station, was connected to the cart booster pressure plate redstone trace, which detonated when the track was used. For that reason, you were removed from the whitelist. After various other griefing incidents involving TNT by a member on the whitelist before BigBrother was installed, we can only assume the others were your doing too.

If you want to be placed back on the whitelist, you will need to reapply for the server. If all active players agree to allow you back, I'll add you again.