I give this tool to my moderators to spy on xrayers and other rule breaking players. Problem is I like my staff to be as legit as possible and therefore they are in survival mode (with damage turned off when they're moderating). When they go to spy on people and are invisible, mobs (like creepers and spiders) still try to attack their invisible entity. It usually gives the game away when a load of mobs are chasing an invisible being!

Thanks,
Josh.

Closing, see #318