I would strongly recommend getting your Boost information from the Medium Blog, where I publish posts like this: https://blog.medium.com/meet-60-publishers-in-the-boost-nomination-pilot-bb4923442864

Kristina does great work, but when it comes to getting the latest intel about Boosting, you're always better off getting it from those of us who work at Medium. If you've ever got questions, just leave comments on any of my posts on the Medium Blog!