I thought common sense was a lost cause on the internet.
One thing that has made the Vgchartz community so fun is that you don't get restricted at every opportunity, and the users are mature enough to not take advantage of this (well, most of them).
The number one thing that can get you banned is repeated trolling, especially very rudely, something like,
"BIASED Wii FANGIRLS!" " ENJOY PLAYING YUR GAMECUBE 2 LOLZORZ!!"
Too lazy to put it in 1337 speak.