It's not that I have anything against robots... some of my best friends are robots (or behave like robots). But lately I got more comments on this blog by robots than humans. And although robots became very clever over the years and really almost started commenting like humans, I still know when a comment is done by a robot.
That's why I need my viewers to prove they're human when they comment by typing two words. Sorry for the incovenience, but blame the robots.