...because, sometimes its actually quite useful to have a 'one file' drop in javascript file. Note that minification, compression, etc. is not done at all; there are other plugins that perform those ...

The only exception is obfuscator's sourceMap option which must not be set, as it will be handled automatically when using gulp-sourcemaps. With version 1.1.6 onwards, gulp-javascript-obfuscator can be ...