Comments on CAPTCHA draft

Dear colleagues,

Listed below are the comments that I could find on the CAPTCHA Note draft. Please add whatever I have missed to this list.
CAPTCHA comments

  *   Privacy considerations:
  *   Movement-related CAPTCHA:
  *   Video game CAPTCHA and multi-device authentication:
  *   ReCAPTCHA:

  *   ReCAPTCHA again:


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Received on Monday, 6 August 2018 19:49:16 UTC