I have 39K reputation. How can the site even THINK about asking if I am a robot?! I haven't been a robot for the past god knows how many years (as far as I know).
And the Capcha (is that how you spell the stupid word) is unusable on a small screen. Having to identify what is in pictures when the pictures are too small to make out what they are supposed to be is just idiotic! How am I supposed to identify which of those little brown blobs is supposed to be a hamburger?!
Surely that sort of thing should never ever happen for a known human(ish) user. A new user, yes, but one with 39k reputation?!