Captcha not showing to enter but required. HTML id attribute Answered

Operating System: Windows 7 Ultimate 64-bit SP2
Browser: Google Chrome 30.0.1599.101 m
URL: https://www.instructables.com/id/Repair-mouse-with-double-click-problem/?ALLSTEPS
Reproduce: Try to comment

Possible Error: HTML div id attribute contains abnormal '#' character which could be a typo preventing JavaScript from performing action.

I was trying to post a comment on a instructable, but it said I needed to enter the two words in the image. But all it shows is the comment field and then: "This helps us prevent spam". The html id of the div i believe suppose to contain the captcha is "#recaptchaContainernull" I believe that this should probably be "recaptchaContainernull". This html div tag having the wrong id would prevent the captcha from loading dynamically with JavaScript.