#3 "I've seen decisions being made by interns."

Philip Su, a software engineer at Facebook, published "Ten Things I Hate About Working At Facebook" on his personal blog last year in a tongue-in-cheek attempt to write about the things that separate Facebook from so many other companies.

"I’ve seen decisions being made by lone engineers.  Or an engineer and a designer over lunch.  Or by interns," he writes. "All without telling their managers, even.  This sort of autonomous decision-making suggests a complete lack of understanding of how corporations are supposed to work."

#2 "Instructions were not clear, everything was a guessing game, and I was immediately set up to fail."

One former intern at Facebook says that the instructions from the team leads about the work were not clear. All that an intern can do is guess about what work their leader expects from them, ultimately ending up with half finished or wrong work.  The Quora post says, “After being put on a rigorous 10-day performance plan, one former employee said his team didn't even bother to give him feedback.  At that point, I quit on the spot."

#1 "Knowing that you are part of an overhyped public company."

Facebook, which was "supposed to be valued at over $200 billion by now, had a dismal public offering that left many employees feeling totally helpless as they saw the value of their stock collapse," an anonymous source wrote on Quora.

Read Also: 10 Promising But Never Known Operating Systems and 9 People Who Can Lead $290 Billion Microsoft