why people do it? the answer is easy: they sell e-books about how to earn money with adsense ha ha ha
the dumb guy who created this fake screenshot must have failed in maths at school... he couldn't even correctly calculate CTR and eCPM.....
well imho could be... but then who knows... why wouldn´t that guy have you a look in his account to proof?
I guess some people will get interested and click his signature links. That's all I can think off. Or he just want some attention.
Your skills would be better suited to joining the Logo/Banner competitions where using your PhotoShopping expertise would actually earn you some money...
8.9 mill, that is a sweet fake. the first thing I would do w/ 9million is blog about it.. no wait, I would retire and never look at a computer again, buy boat, go to hawaii, be somewhere else. hahahah