If for any reason you want certain evaluators to do blind evaluations, meaning they're not able to see the names, photos, and details of speakers whose sessions they're evaluating, you can turn on the Anonymous mode for such evaluators. For the evaluator with the Anonymous mode activated, real speaker names are replaced with made-up ones, and speaker photos, biographies, taglines, and all other speaker fields are hidden.
When inviting a new team member on the Teams page, simply tick the Anonymous mode box before sending the invitation. By doing so, your team member will join your event with the Anonymous mode already active, making it impossible for them to see any speaker information at all. This can be done regardless of the role you're assigning to your team member. In other words, the Anonymous mode isn't limited only to team members with the Evaluator role.
You can also activate the Anonymous mode for your existing team members, i.e., when you're launching a second round of evaluations or at any other moment that you find fitting.
On the Team page, click on Edit and check the Anonymous box next to the team member to which you want to assign the Anonymous mode to. Confirm your choice by clicking on Save changes. That's all there is to it!