Is it really getting less malicious? Or is the General Spam getting to be so high, that the "malicious" percentage has gone down? Because the percentage decrease may not actually correspond with the actual number of malicious emails.
I constantly get WoW, Facebook, Bank of America (and other banks), UK Lottery, my long lost dead uncle who owned an oil business and died in a plane accident phishing emails on an hourly basis on my 'junk email'. And I'm not talking my junk folder, I'm talking the email address I use to register for online forums.