According to the WSJ[1] the investigation is looking strictly at "people who might be trying to skirt New York's laws by renting out multiple units or obtaining their primary residence through Airbnb for extended periods"
It seems like this can be accomplished without a whole-hog dump of every NYC-area landlord. Why not have AirBnb dump this data, with a neutral third party auditing?
One thing that doesn't smell right though:
> "Airbnb has about 15,000 hosts—or people who share their living space—spread out among New York City's five boroughs, with 87% of them renting out the homes that they live in."
I call shenanigans on this. I've done searches throughout NYC as a curiosity exercise last time this topic came up. "Whole apartment" listings vastly outnumber "room in apartment" or "shared room" listings. The notion that the vast majority of Airbnb landlords are present, or renting out parts of their existing homes, does not seem to bear out in reality.
[1] http://online.wsj.com/article/SB1000142405270230444140457912...