Apple should add "promotional notifications" section to iOS, then ban everyone who don't put their marketing bs into that category
On the flipside, I have an app that sends notifications. We don't abuse it or use it for promotions, and APNS and Google's version works perfectly fine for us.
But then everyone started doing it and Apple stopped enforcing the rule. It may still be in there somewhere as a "guideline."
edit: downvote all you want. Fact remains that there is no way currently to block advertisement notifications and no disincentives for those who use them.
Works well.