Yana, I'm confused by so many of your stories about Boosting. This story you wrote was not Boosted: https://medium.com/p/9ba360417968

The story got great traffic (which is wonderful! lots of stories on Medium get traffic without Boosting), but that doesn't mean it was Boosted. If a story is Boosted, you will see an icon on your story stats page. If you do not see the icon, the story has not been Boosted.