So the original announcement is here:
And it's basically implying you mark your series as complete, and then Tapas regularly reviews completed series to add them to the collection. So it's more like staff pick but for completed series, I guess. I don't think I've ever known anyone who's got into the binge section, so my advice would be don't worry about it, it'll happen or won't, there's not much you can do about it other than be quality and finish.