HackerMeter is an interesting concept. Curious to try it out

edit: Logged in, I'm on the very first basic Fibonacci question and there's no support to submit my answer in JavaScript, seriously? I can understand not being to account for all the different server-side languages out there but this is a website and all browsers support Javascript. There's nothing in their "about us" that says they are targeted to a specific type of developer so hopefully they'll add this in the future.