I run a forum and we have the same issue.
It's easier to ban email addresses. Basically, it takes less time for a mod to do an email ban than it takes for a troll to create a new email account so, logically speaking, the troll will tire before the mod.
Unless you have the ultra-determined mother of all trolls, which is why we can also ban by IP and even domain, if we have to.
"I mean, c'mon, Viva Pinata, a game with massive marketing, didn't sell worth a damn to the "sophisticated" 360 audience, despite near-universal praise--is that a sign that 360 owners are a bunch of casual ignoramuses that can't get their heads around a 'gardening' sim? Of course not. So let's please stop trying to micro-analyze one game out of hundreds and using it as the poster child for why good, non-1st party, games can't sell on Wii. (Everyone frequenting this site knows this is nonsense, and yet some of you just can't let it go because it's the only scab you have left to pick at after all your other "Wii will phail1!!1" straw men arguments have been put to the torch.)" - exindguy on Boom Blocks
