As long as Adblock keeps on blocking them I don't mind what they do.
And Weblock for iOS is even better. It blocks everything in apps, browsers. Did anyone manage it to kill those extra-nasty ads before you can watch videos of multiple sources on Macs? "In twenty seconds you may skip this ad " doesn't exist in WLANs with Weblock.
http://www.youtube.com/watch?v=sPY7n0RYwCg
https://itunes.apple.com/app/weblock-adblock-for-ios/id558818638?mt=8
A complete new iOS feeling believe me. I'm using it since February and won't miss it. I'm not the dev, just passing the info.

BTW if you want to kill iAd with Weblock you'll have to add it manually because the dev thought Apple would't approve an app removing iAd out of the box.
