THIS!
Another quote from article: "I’ve heard a lot of people asking how they can get out of the Promotions tab and into the Primary tab."
There is a reason why I enabled Promotions tab and I don't want you'r emails! If you will end up in my Primary by tricking me I will unsubscribe immediately to not see them at all!
I didn't even know there was a promotions tab until reading this article. I just enabled it. It's exactly where I want marketing emails to go and am really glad to see Google innovating in this space.
(BTW, I love how Gmail will attempt to unsubscribe you when you mark a marketing email as spam, which is also very nice)
There is a reason why I enabled Promotions tab and I don't want you'r emails! If you will end up in my Primary by tricking me I will unsubscribe immediately to not see them at all!