If too many casual or hit and run type vandals are banned that we are likely banning the next users, not the vandal.
That's true, but I think it just shows that we should clear the banlist from time to time.
I'd like to point out an anecdote you might not have known about: a few days ago, a logged-in user started vandalizing several pages relating to Australia. I got his IP from the logs and blocked it, and repaired the damage. A few days later, I got personal e-mail from that domain saying that the IP address was a student terminal, the user in question had been disciplined, and requested that I unblock the IP (which I did, of course).
So I'd just like to say that even blocked users/IP do have recourse. We're all very reachable here.
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