Aven Donn
Hey, I say Linux is a horrible operating system. It crashes all the time, supports nothing, and only comes in Chinese. Oh, you want sources? What are you, lazy? Do I have to do everything for you? Why don't you go learn a thing or two?
I have to cite my sources for my Uni work or get busted for plagiarism, which can not only see me up for disciplinary or expelled from my degree, but it can also potentially see me doing jail time if the lack of citation goes against the copyright terms of the source I cited from. Even Creative Commons Licenses have terms of licensing.
In the employment world, citing your sources can help your colleagues, so they're working with you instead of figuring out where the ******** you pulled that data from. This helps to keep the office functioning smoothly. You could say that source citation is the oil in the cogs of the company's machinations.
Also I'm not capable of going into people's heads and finding out where they've been searching. Quite frankly I don't want to go into people's heads. Not after seeing that young man's images of him raping some 4 year old girl. Excuse me whilst I puke up from pure revulsion.