The bane of the existence of the internet is spam, and one of the big ways to combat it is through CAPTCHA, which is an acronym for (I shit you not) "Completely Automated Public Turing test to tell Computers and Humans Apart."
The problem with this system is that it's just not metal enough. No, I don't want to enter some dumb phrase or some address, I want something metal. And that's exactly what the fine folks at Metal Captcha have figured out. The phrase is in fact a metal band logo, so it becomes a fun game. Here… test it out:
Metalheads looking to build intricate forms that don't want any extra spam can implement the CAPTCHA via the available API.
Thank you creative internet denizen.