Participant Obfuscation and Privacy
As a Moderator, you will be able to see participant's profiles by clicking on their picture or name in the Discussion View.
Clients see a similar profile page, but any identifying information (Name, email, address, and phone number) are hidden from their profile display.
Additionally, it may sometimes be necessary to hide this information from Moderators, too. Support or your project manager can enable Obfuscation to give the moderators the same view of the participant's profiles that clients have, as well as hiding the user's email addresses from the Project Users tab. You will still be able to email your participants from here, even though you cannot see their email addresses.
Contact support or your project manager if you need this enabled on your project.