> > Still, knowing that he's a bad actor, you could skip signing. Are there > so > many new spammers every day? Or, rather, there is a bunch of professional > spammers who know how to hide? >
Just to answer the second question: Yes, absolutely. Spammers are fully professional and organized groups. Some of those groups are extremely sophisticated. They control a huge number of resources: IPs, domains, accounts. There are black market account resellers who provide spammers with large numbers of accounts at different organizations. Those accounts are sourced in a variety of sophisticated ways: manual creation in low cost countries, bulk hijacking (through data dumps, common passwords etc.). I won't pretend that there aren't some aspects of spam that can be solved by caring more and making simple changes. But I do want to emphasize that a number of very large spammer groups are extremely sophisticated and persistent. Best, Emanuel
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