The community is a kind of friend list were you riders can follow you or you can follow others. It is important to change your privacy settings and put your Profile in Manage Profile to Public. This means that other users can find your profile and use your score as an opponent. The Protected profile is still in hidden modus and Tacx will change this to a request mode, so that people who wants to follow you, need an approve from you to get access to your Files (now you can set to open and set to protected afterwards).
Searching now goes via email: As an example select email@example.com. You can now follow this account or see via this account other riders and link them up.