Yeah, it does make me wonder some about the ethicalness. Back in 10k Apart 2010, one of the top 3 apps compressed nearly their entire app into a .png and then eval()'d the result... Which ended up being pretty innovative I suppose, as they wrote the compressor and bootstrap themselves.

Then again, Closure Compiler is accepted even though the advanced mode may rewrite some of your code. And the crushers are available to everyone free of charge, so...