To the organization:
I think you should publish the names of team members. When we registered to this event we had to give full name and chess24 username.
I think for a tournament of this level, we would expect to know who we are facing. Knowing the name I can know the FIDE ELO (search by name). That's is more transparent so we know in advance who the opponent will be.
Maybe you can just print a list with names and username of all teams. In every online tournament of relevance (i.e. Nationals, Regionals), names are public.
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