This is why Google has to spend so much time and effort on spam detection. Fortunately, spam bots are still so stupid that they can't write anything intelligen

This is why Google has to spend so much time and effort on spam detection. Fortunately, spam bots are still so stupid that they can't write anything intelligent. But after reading the recent xckd comment it makes me wonder if we'll reach a point when spam bots will be smart enough that it will be difficult to determine that they aren't legitimate. Then online identity theft will be an even bigger problem.