facebook/react — pull request #1664 by spicyj (2014-06-08 19:53:21+00:00)
Title: Add helpful message about pooled classes

Hopefully this will make fewer people confused at all of the null properties. The string won't wrap nicely so I tried to keep it pithy:

https://s3.amazonaws.com/uploads.hipchat.com/6574/26709/v8vzKAC784QMkX2/upload.png

Better suggestions appreciated.