Looks fun and interesting. I will say your recruiting call at the end made some of the devs where I work swear off your service... I think there have been enough scams in this vein that it rubs certain people in a bad way.
Sorry, what? A company blog post that links to their jobs page means you won't use a service? Do you just not use any service that advertises? How do you get Internet access?
I'm not that sensitive and have loved recruiting code games/challenges put out by other companies (like Scribd's AI recruiting game way back...) I was just noting that when I shared this link with my extended team, there was a pretty negative reaction because of how this type of thing has been used in the past by unscrupulous actors.
Our "recruiting call at the end" of what? I'm sorry, I don't understand. This post isn't advertising a new service; it's literally just a series of blog posts.