[nathanlied]

I believe "code" here is being used in the sense that you retrieve YouTube (the website - made of code) with the intent of watching X video. But you don't want some parts of YouTube's code (the bits that display ads) to run on your machine.

One could argue that you should, indeed, have the right to block whatever parts of YouTube's 'code' from running on your machine. Currently, this is the case.