I tried the demo in two different browsers that I use regularly. On the one that stays logged into my google account, I was not challenged with a captcha. On th

I tried the demo in two different browsers that I use regularly. On the one that stays logged into my google account, I was not challenged with a captcha. On the other browser, which I use quite a lot but not with my google account, the captcha appears. I'd think that having a long-standing google account with a normal history of activity would be a good indication that one might be a human. If google is weighting that heavily for this test, that may create a new incentive for spammers and scammers to hijack people's google accounts.