Wouldn't surprise me if that is already over 50% of ad "watches" on youtube. People setting up a server that just watches tons of youtube videos simultaneously to boost their ad revenue.

EDIT: Did some quick maffs, if a PC is running 24/7 it would use about $4.8 worth of electricity per day, and internet may cost around $2 per day, (We can assume unlimited broadband for simplicity). Youtube pays out an average of 0.018 cents per ad watch, so taking that as a quick and dirty amount gives us 378 ad watches per day, or 16 per hour, which isn't really a huge amount for an program set up to just watch multiple videos in multiple tabs (I haven't checked to see if youtube will not pay out for ads watched in a different tab). It probably wouldn't be worth doing it though, as this would just be an amount to break even, and even doubling this amount would only be a profit of less than $7 per day. You'd probably have better luck just wandering around the streets looking for loose change. Unless you could do this in such a way to get tens of thousands of views per day (and not trigger any bot detection on youtube), it is probably just easier to make Elsagate content if you want to try a get rich quick scheme off of youtube.