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I was trying to post a question on Android Enthusiasts earlier on my (government) work WiFi, and was put through a slightly painful experience involving captcha.
This got me thinking, why am I even suspicious? Yes, I'm on my non-home WiFi so there may be suspicious traffic related to other people using the internet here, but I'm logged in to my account on the Stack Exchange Network. I have close to 30k rep across the Network, have been a member for some 5 years, and AFAIK, don't have any major strikes against my account.
Why are "established users" required to complete captcha? I would think that any instance of someone running amok would be fringe at best and easily handled on a case-by-case basis.
Can experience on the site be taken into consideration when prompting someone for a captcha?