I don't see why they took it down. Atleast if they'd leave it up it would be viewed as a legit attempt to further research and it would be a less evil act. But now that they took it down the bad guys already have it and will use it while the good guys will be left without it. Go figure.
BTW, I really don't see what the big deal is, as with all companies if they want to give away information about what you do on their services so be it. Its comparable to AT&T and the phone call database. If a company willingly gives it away their isn't anything you can do about it but cry and complain to your mommy. Afterall its not like they gave away credit card numbers or other very personal information.