EVERYONE
the top video has 84000 hits so far, and as they become more well known will probably reach 100-200K views
if you arent getting screwed, you sould get about 10$ per 1000 people who view your video at most.
lets go with 3$ as a low average,
84x3= 252$
to break even he would need, 134000 views.
you also have to look at it as a bump for their other videos too.
they arent being morons, at least not all of them, they are looking to make a viral video that will boost their income.