My attempt at filling an entire underground room with lava. ...well, two rooms actually, and one was actually a success!
This server actually makes you pay money on paypal to build anything if it's not in the "guest area". the guest area seems to be cleared out every now and again also, so your stuff doesn't stay. Honestly, minecraft is a cool little concept, and interestingly done, but the fact that people actually MAKE you pay to do something for free on "their" server is what ruins it. Not all servers are like that though, so it's still a pretty cool little game.
1st: Lost and damned, by Kamelot
2nd: Farewell, by Kamelot
3rd: Moonlight, by Kamelot
At the end of the video you actually see someone get kicked. "Supposedly" the griefer who had caused the mess. Anarki realizes that the other room has been flooding while they were taking care of the room with the tree, and my guess is that he believed the other person was the cause. lol.