Currently on the Marketplace Submissions Rules, "No minified code, it should be human readable and well documented. No obfuscated or unintelligible code is allowed."
This is pretty unfair to coders. I can understand having to submit a review copy of the code, but having the marketplace item's code fully documented and unprotected is like asking all models to include their source files.
I can understand that obfuscated code not be allowed until things such as a permission system is added, but the marketplace should at least offer to minify code post approval. Otherwise, scripted items might as well be open source.