Spam levels have risen from 31 billion messages per day in 2005 to 61 billion in 2006, according to Ironport. It is shifting form too, with more than 25% now being represented by image spam (up from less than 5% a year earlier).
Image attachments will quickly become fodder for spam filters, if Newton’s Third Law holds true. This means your silly little image based signatures (the ones with your logo and big title on them, that you send to your mother-in-law) will be allowed no more, and you won’t be able to share porn either.
Is any of this a bad thing (besides the spam levels, that is)?