I most often browse the site from my phone. If I answer a question on the mobile site using my phone I never get a CAPTCHA. However if I do so on my desktop (Chrome) than I always get one.

What triggers this?

  • Note: I didn't get one when I posted this. – R R Jul 22 '12 at 18:41
  • Always? Hmm, strange. – Matthew Read Jul 23 '12 at 15:53
  • @MatthewRead Actually, I tried using the site my PC the whole day and only got one on the first post. Yesterday 2 out of 3 times but 2 were in the 5 minute period. Is it somehow linked to activity on a given machine? I can't think of anything else as I logged in on machine several months ago. – R R Jul 23 '12 at 16:37
  • FYI: I got them using my Nexus S with the full site view enabled. But not consistently, last occurrence is 2 weeks ago or so. – ce4 Jul 25 '12 at 21:13

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