Why do I, a logged in user, have to solve a captcha to post?
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We don't actually serve any captchas: it's all done by Cloudflare. Cloudflare runs a firewall that scans incoming requests and issues a captcha challenge to any that appear to be automated or malicious. The exact rules it uses to do this aren't public, but we can tweak it some. It seems to trigger more often (though not always by any means) if you're posting code, particularly PHP. If you let me know the details of any request you've made that got hit with a captcha, I can have a look at the settings and try to identify any issues.
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What context did the captcha appear in? Like, did you leave a tab open for a while? — Mithical 9 days ago
I got hit with a captcha when composing (or maybe editing -- don't remember) an answer earlier today, too. I don't think it took me an especially long time; it's not like I walked away from the browser for an hour or something. — Monica Cellio 9 days ago
It just happened to me on the EE site after editing an answer I wrote a few hours earlier. This is rather annoying, since I was already logged in. Even worse, it made me do it twice (click on all the pictures containing a boat). Some of the pictures were hard to see, and maybe I missed one on the first attempt. The site needs to lighten up a bit. — Olin Lathrop 5 days ago