think its weird they're testing ads now tho like, didn't they just say no to ads 6 months ago? anyway, i guess its all about finding ways to make that $13 billion . but honestly, dont know if banner ads at the bottom of answers will fly with everyone...people can be pretty sensitive when it comes to those things
just think about all the spam emails we got from bots that sound like humans already... now they wanna sell us ads too 
how's this gonna work out? 
think its weird they're testing ads now tho like, didn't they just say no to ads 6 months ago? 
anyway, i guess its all about finding ways to make that $13 billion 