DISCLAIMER: I'm aware that some of these are pretty obvious, but hopefully this will benefit some of the new players who aren't 100% up to server policy. Format: the spoiler title will represent what someone might report, and the contents of the spoiler will suggest a few points to remember before filing that report. Spoiler: "I just saw someone fly in the hub!" /fly is an available command on the server The only people who cannot fly are non-donators. Try and check to see if the flying player's nametag is gray. The player could also be using both double jumps and the launch pads. When combined, you can get pretty far. Spoiler: "Someone's placing a bunch of blocks at a time in creative!" Some players (Elite, Elite+, and staff) have access to World Edit and Voxel Sniper, these plugins allow players to use commands which place multiple blocks at a time to save time. Again, check the player's rank. Spoiler: "Someone was sprinting in Murder!" The murderer can sprint, this is a feature in the game and was put there purposefully, don't panic. If you see more than one person sprint and/or someone is moving at a much faster pace than they should be, that's a good indicator that someone is hacking. Spoiler: "I found a bug in ___" Report users in the Bug Reports section! Spoiler: "Someone is in an area in the hub that's impossible to get to with double jump and launch pads." Player probably used /fly. See Spoiler #1. Spoiler: "Someone is spamming!" If the user is spamming, report them in the User Reports section! Some hacked clients do spam in chat however, so make sure you report it to a member of staff as quick as possible. Spoiler: "I saw someone hacking in Hub!!!" Alright, report it! What's that? You just saw them? Where's your proof? Nobody is saying you're lying, but if you don't have proof, it makes incredibly more difficult to act on a situation. Try to upload a CLEAR screenshot if you can. If possible, more than one is usually better. A video is even better. Making multiple testimonies in order to make your point really doesn't help, getting proof is really what's going to help you out. Also, Spoiler: "Someone was flying faster than they should be!" In 1.8, players can fly and sprint at the same time. Check to see how much faster they're going than usual. If it's so fast that you can't see their nametag, then it's definitely a hack. UPDATE: Donators now have permissions to /flyspeed in creative that allows them to fly much faster than usual. If they're a VIP or Elite player, they're most likely using that command. Will update as more situations are brought to my attention.