How to Disable WordPress “Prove your Humanity” captcha code question

A while back, WordPress introduced an annoying little feature, where you have to solve a simple math question in order to log in to your site:

I ignored this for a while, but decided it was too much of a hassle wile offering no real benefit. However, finding a way to disable it is not very intuitive, as it is not actually a core WordPress feature, but rather one added with Jetpack. It’s part of the Protect module:

Disabling Protect disables the captcha.

If you don’t see it on the main Jetpack page, click on the “See all xx Jetpack features” button:

and search for it:

After disabling, you’ll no longer get asked any nagging math questions on login:

PLEASE NOTE: Disabling this feature may decrease security for your site. Use your best judgement!

WordPress Error “please fill the required fields (name, email).”

I have been having a problem with one of my WordPress blogs that had me stumped: Whenever I would comment on it, being logged in as my WordPress user, I would get the error message:

“please fill the required fields (name, email).”

This started happening out of nowhere, without any connection to an update as far as I could tell. I even went so far as to check the code of my child theme – nothing. And I could not find any matching posts on the WordPress forums either…

It turned out to have a very simple solution. I disabled Jetpack, re-enabled it, and authorized Jetpack with again and lo and behold, the problem is gone.

No idea what the actual cause was, but this was one solution I did not try for some time – so I hope this helps anybody who is similarly stuck. 😉