In LivingSocial's Operating loss for 2012 was a 1 time write down of goodwill (about $600 million), which is a non cash expense, so should not be included in calculation of operating expenses.
Ehh that ranking should have included IPO exits, which LP's do care about, but then again, it did expressively state that it was based on their annual M&A report.....which, given the topic, could not include ipo exits....but then again, this data is so shady, a list is better than no list.