My eyesight isn’t nearly as good as it was a few decades ago. The human verification test, to sign up for Github displays 6 fuzzy pictures of dice and asks the user to identify the picture that contains dice that total 14. I am perfectly capable of identifying the correct picture, it just takes me a little while to identify the numbers on the dice. And that would be fine, except the test is timed. If you don’t identify the proper images, 10 times in a row, in the required amount of time, you fail the human verification test. I failed the test at least 1/2 dozen times before I gave up and had someone else assist me in identifying the values of the individual dice.
My eyesight has been slowly fading over the last couple of decades and I’m dealing with it to the best of my ability. But this type of timed test is insulting. It implies that because my eyesight isn’t what it once was, I shouldn’t be allowed to access Github repositories.