I must have made a typo at "don%27t". I corrected the first query and it now returns 238.000 results for me again.
Perhaps some Blogspot sites got hacked/ their users phished (I noticed suspicious posting activity dating back to November 2011), which would explain how they got access to the emails. Or these accounts are all fake (selling likes) and they use Blogspot to create online persona's and manage their accounts.