I don't understand why people have a problem with this. I would have thought that with my erretic mix of network connections, and variety of computers, that I would hit this a few times. I don't remember ever having had a captcha request with this site.
It happens when you where last active in other devices, left it logged in, then used it on other devices or browsers. OR you've cleared your browser's data and re-logged your account in.
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And, also I don't remember experiencing captcha as pain in the ass. If you are right what they require, it would be enough.