Someone should remind me to undo this once we know what's going on or when things go back to normal. I'm pretty forgetful!
I'm also having this problem and if I'm not active for X minutes and I do a page refresh it also asks for the Captcha even though I don't logo out from Linux.org.The following screenshot, deleted by Nelson, shows the issue. I have resurrected it, used Shutter to censor his IP address, and reissued it.
SCREENSHOT 1 - CAPTCHA REQUIRED FOR LINUX.ORG
I have gone through a few of my Distros, using different browsers, and can report soon
What's with that big query string after the URL to the question? I don't normally have those on this site.