In article 1369438008.34960.YahooMailNeo@web161901.mail.bf1.yahoo.com, Al Johnson alj62888@yahoo.com writes:
In the very slim event that legit wiki editor would also happen to have had his IP previously used by a malicious botnet, wouldn't a "IP blocked" message simply inform him that his computer has been compromised?
No, because they could be using a dialup account and get a dynamic IP address that was used by someone else previously.
Everything that's being discussed has already been done to combat email spam. It seems the appropriate thing to do is to leverage that work instead of re-inventing it.