Many instance of "This component has already been built into a ReactElement, and cannot be reused"

[ramnivas]

Looking at our fullOptJS output, I see many instances of "This component has already been built into a ReactElement, and cannot be reused". While probably gzipping will take care of compressing all the instances, not clear how good of a generic job it will do. Could this string be an application-wide constant instead OR not at all added when compiling in the fullOptJS/Production mode?