I currently chat on the Discord for React JS[1] and it's quite amazing. I think the Magento developer community is of similar size, activeness, and if we restrict it to Magento2, the code also resembles React.
I consider myself a decent Magento developer and I am having the absolute worst time ever beginning with Magento2. Documentation is fragmented, most of the content is duplicate, and with the codebase in constant flux, solutions become out of date very quickly.
1: https://facebook.github.io/react/blog/2015/10/19/reactiflux-is-moving-to-discord.html