So there are a lot of features in React that are basically getting deprecated, like createClass in favor of ES6 components, mixins, etc. This is good that you guys are learning as you go, my question is will you ever release a version of React, possibly spin React off into a version which supports deprecated APIs and a version that doesn't and is therefore smaller, faster, and easier to maintain? Eventually you could drop support entirely for the deprecated feature. That would be the best response to this IMO.