Accounts can look like they're coming from the same IP address all the time. If people access the website from inside a NAT, they'll have the same IP. Cave is

Accounts can look like they're coming from the same IP address all the time. If people access the website from inside a NAT, they'll have the same IP. Cave is like a hell-ban, and it works when there aren't too many users on the system. The forum I work on peaks at 10k concurrent users with over a million accounts. It would make for an administrative nightmare (which is probably why the feature request tries to automate a solution).