This is part of Cloudflare's automatic bot protection, so it's a legitimate thing. It's a service by Cloudflare so we don't currently know what caused it to suddenly have more false positives. Keith will be looking into it when he gets a chance, but for now, rest assured that it's a harmless security measure, and completing the captcha should send you back to Subeta where you left off.

Yeah, we know and that's why we are going to look into it. I still wanted to let everyone know it is harmless, since it does look suspicious (as OP pointed out) if you don't know what it is, and I felt it would be good for a staff member to clear it up so nobody panics.

I don't know if any of you have tried this, but I deleted my cookies (it's annoying I know cause you have to sign into everything again) and I am not getting them anymore. And I was getting a never ending one--like I couldn't even get past the captcha on the page it was throwing it up for.