What if we don't ban him, but instead track him down by IP address and find the person behind the multiple accounts?
You'll probably find a public proxy instead of the person behind the multiple accounts. :D
Although, I'm also for not banning him. He's not bothering anyone. And if he's spamming the "game," it will be moved to the "off-topic" section anyway, so IMHO, it's forgivable.
Знание некоторых закономерностей освобождает от изучения многих фактов.
Мечты сбываются рано или поздно, так или иначе.