Quote:
Originally Posted by multiweb
Most people have dynamic IP addresses.
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I don't actually know how true this is regarding external IP?
Several forums I am a member of regularly enact bans of the IP address of a user, which prevents them from coming back at all (except via a proxy server, but you could always ban a massive list of proxy servers too if you liked).
Seems quite effective, was also quite effective for me when I ran a forum for a while.