None of these scripts would stop what Watchdog is describing. He''s not talking about clones at all. What he's talking about are zombie IRC bots that you can't tell the difference between a real user and a fake user. There can be 1500 of them on at once, all from different hosts.
The only real way to tell is to check by nicks and ident....though most bots still aren't 'smart' enough to handle that.
