Heart44 writes: A lot of researchers when using Google Scholar are being asked to prove they are not a robot. You have to find all the rivers (but not the sea or lakes) or all street numbers (but not other numbers) or all the store fronts from nine poor quality images, sometimes more than once and, surprise, you will fail more than two thirds of the time and then just get an error 400 "Malformed request, that's all we know". You are offered an audio challenge but clicking on that simply loads more pictures... Is that the best they can do distinguishing between man and machine?
One post ended by stating succinctly "I'm not a robot, I'm an academic professional, and this process is wasting nontrivial amounts of my time. How do I stop it?"