Keep in mind that those people do not do it intentionally; it's just the script they are infected with. Once they manage to remove it, there is no reason to deny them.
yes, but the fact is that all the people who ever tried to send me viruses/virus messages are useless to me in terms of files download. I only use irc for downloads, not for chatting, so if a user has no server running, he's of no use to me, so he can stay in the ignore list for ever.
Also, $wildsite represents the full *!*@host (or IP) that is likely to change whenever the user reconnects to his ISP, so keeping it for long duration would have no effect
I know, that's the problem with dynamic IPs that are used by most people, no effective ignoring is possible