Ahem:
"Worse than the end of the freedom that the phenomenon summervacation brings with it is the endless stream of worthless and simply annoying commercials. School is a necessary evil, a goblet of poison that needs to be finished because it will lead to a better future. The profiteers who try to use this situation(1) with posters of extremely happy kids who are just old enough to be kicked out of elementary(2) should be banished to the fourth circle of hell. It is a nail in the coffin(3) of humanity"
1: not literally, but this was the closest I could come.
2: In the way that they just left elementary and then go to middleschool
3: A dutch expression. It means it's the worst possible insult to something (I think XD)
Yeah... Not my best translation XD